It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 571 is not a prime number.
For example, 397 571 can be divided by 379: 397 571 / 379 = 1 049.
For 397 571 to be a prime number, it would have been required that 397 571 has only two divisors, i.e., itself and 1.
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397 571 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 397 571 is about 630.532.
Thus, the square root of 397 571 is not an integer, and therefore 397 571 is not a square number.
The square of a number (here 397 571) is the result of the product of this number (397 571) by itself (i.e., 397 571 × 397 571); the square of 397 571 is sometimes called "raising 397 571 to the power 2", or "397 571 squared".
The square of 397 571 is 158 062 700 041 because 397 571 × 397 571 = 397 5712 = 158 062 700 041.
As a consequence, 397 571 is the square root of 158 062 700 041.
The multiples of 397 571 are all integers evenly divisible by 397 571, that is all numbers such that the remainder of the division by 397 571 is zero. There are infinitely many multiples of 397 571. The smallest multiples of 397 571 are: