It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 997 408 077 is not a prime number.
For example, 997 408 077 can be divided by 3: 997 408 077 / 3 = 332 469 359.
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For 997 408 077 to be a prime number, it would have been required that 997 408 077 has only two divisors, i.e., itself and 1.
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997 408 077 is an odd number, because it is not evenly divisible by 2.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 997 408 077 is about 31 581.768.
Thus, the square root of 997 408 077 is not an integer, and therefore 997 408 077 is not a square number.
The square of a number (here 997 408 077) is the result of the product of this number (997 408 077) by itself (i.e., 997 408 077 × 997 408 077); the square of 997 408 077 is sometimes called "raising 997 408 077 to the power 2", or "997 408 077 squared".
The square of 997 408 077 is 994 822 872 064 837 888 because 997 408 077 × 997 408 077 = 997 408 0772 = 994 822 872 064 837 888.
As a consequence, 997 408 077 is the square root of 994 822 872 064 837 888.
997 408 077 is a number with 9 digits.
The multiples of 997 408 077 are all integers evenly divisible by 997 408 077, that is all numbers such that the remainder of the division by 997 408 077 is zero. There are infinitely many multiples of 997 408 077. The smallest multiples of 997 408 077 are: