It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 997 474 is not a prime number.
For example, 997 474 can be divided by 2: 997 474 / 2 = 498 737.
For 997 474 to be a prime number, it would have been required that 997 474 has only two divisors, i.e., itself and 1.
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997 474 is an even number, because it is evenly divisible by 2: 997 474 / 2 = 498 737.
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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 997 474 is about 998.736.
Thus, the square root of 997 474 is not an integer, and therefore 997 474 is not a square number.
The square of a number (here 997 474) is the result of the product of this number (997 474) by itself (i.e., 997 474 × 997 474); the square of 997 474 is sometimes called "raising 997 474 to the power 2", or "997 474 squared".
The square of 997 474 is 994 954 380 676 because 997 474 × 997 474 = 997 4742 = 994 954 380 676.
As a consequence, 997 474 is the square root of 994 954 380 676.
The multiples of 997 474 are all integers evenly divisible by 997 474, that is all numbers such that the remainder of the division by 997 474 is zero. There are infinitely many multiples of 997 474. The smallest multiples of 997 474 are: