It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 022 is not a prime number.
For example, 397 022 can be divided by 2: 397 022 / 2 = 198 511.
For 397 022 to be a prime number, it would have been required that 397 022 has only two divisors, i.e., itself and 1.
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397 022 is an even number, because it is evenly divisible by 2: 397 022 / 2 = 198 511.
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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 397 022 is about 630.097.
Thus, the square root of 397 022 is not an integer, and therefore 397 022 is not a square number.
The square of a number (here 397 022) is the result of the product of this number (397 022) by itself (i.e., 397 022 × 397 022); the square of 397 022 is sometimes called "raising 397 022 to the power 2", or "397 022 squared".
The square of 397 022 is 157 626 468 484 because 397 022 × 397 022 = 397 0222 = 157 626 468 484.
As a consequence, 397 022 is the square root of 157 626 468 484.
The multiples of 397 022 are all integers evenly divisible by 397 022, that is all numbers such that the remainder of the division by 397 022 is zero. There are infinitely many multiples of 397 022. The smallest multiples of 397 022 are: