It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 997 494 is not a prime number.
For example, 997 494 can be divided by 2: 997 494 / 2 = 498 747.
For 997 494 to be a prime number, it would have been required that 997 494 has only two divisors, i.e., itself and 1.
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997 494 is an even number, because it is evenly divisible by 2: 997 494 / 2 = 498 747.
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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 997 494 is about 998.746.
Thus, the square root of 997 494 is not an integer, and therefore 997 494 is not a square number.
The square of a number (here 997 494) is the result of the product of this number (997 494) by itself (i.e., 997 494 × 997 494); the square of 997 494 is sometimes called "raising 997 494 to the power 2", or "997 494 squared".
The square of 997 494 is 994 994 280 036 because 997 494 × 997 494 = 997 4942 = 994 994 280 036.
As a consequence, 997 494 is the square root of 994 994 280 036.
The multiples of 997 494 are all integers evenly divisible by 997 494, that is all numbers such that the remainder of the division by 997 494 is zero. There are infinitely many multiples of 997 494. The smallest multiples of 997 494 are: