It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 164 is not a prime number.
For example, 397 164 can be divided by 2: 397 164 / 2 = 198 582.
For 397 164 to be a prime number, it would have been required that 397 164 has only two divisors, i.e., itself and 1.
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397 164 is an even number, because it is evenly divisible by 2: 397 164 / 2 = 198 582.
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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 397 164 is about 630.209.
Thus, the square root of 397 164 is not an integer, and therefore 397 164 is not a square number.
The square of a number (here 397 164) is the result of the product of this number (397 164) by itself (i.e., 397 164 × 397 164); the square of 397 164 is sometimes called "raising 397 164 to the power 2", or "397 164 squared".
The square of 397 164 is 157 739 242 896 because 397 164 × 397 164 = 397 1642 = 157 739 242 896.
As a consequence, 397 164 is the square root of 157 739 242 896.
The multiples of 397 164 are all integers evenly divisible by 397 164, that is all numbers such that the remainder of the division by 397 164 is zero. There are infinitely many multiples of 397 164. The smallest multiples of 397 164 are: