It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 697 is not a prime number.
For example, 998 697 can be divided by 3: 998 697 / 3 = 332 899.
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For 998 697 to be a prime number, it would have been required that 998 697 has only two divisors, i.e., itself and 1.
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998 697 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 998 697 is about 999.348.
Thus, the square root of 998 697 is not an integer, and therefore 998 697 is not a square number.
The square of a number (here 998 697) is the result of the product of this number (998 697) by itself (i.e., 998 697 × 998 697); the square of 998 697 is sometimes called "raising 998 697 to the power 2", or "998 697 squared".
The square of 998 697 is 997 395 697 809 because 998 697 × 998 697 = 998 6972 = 997 395 697 809.
As a consequence, 998 697 is the square root of 997 395 697 809.
The multiples of 998 697 are all integers evenly divisible by 998 697, that is all numbers such that the remainder of the division by 998 697 is zero. There are infinitely many multiples of 998 697. The smallest multiples of 998 697 are: