It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 167 989 is not a prime number.
For example, 397 167 989 can be divided by 127: 397 167 989 / 127 = 3 127 307.
For 397 167 989 to be a prime number, it would have been required that 397 167 989 has only two divisors, i.e., itself and 1.
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397 167 989 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 397 167 989 is about 19 929.074.
Thus, the square root of 397 167 989 is not an integer, and therefore 397 167 989 is not a square number.
The square of a number (here 397 167 989) is the result of the product of this number (397 167 989) by itself (i.e., 397 167 989 × 397 167 989); the square of 397 167 989 is sometimes called "raising 397 167 989 to the power 2", or "397 167 989 squared".
The square of 397 167 989 is 157 742 411 486 304 128 because 397 167 989 × 397 167 989 = 397 167 9892 = 157 742 411 486 304 128.
As a consequence, 397 167 989 is the square root of 157 742 411 486 304 128.
397 167 989 is a number with 9 digits.
The multiples of 397 167 989 are all integers evenly divisible by 397 167 989, that is all numbers such that the remainder of the division by 397 167 989 is zero. There are infinitely many multiples of 397 167 989. The smallest multiples of 397 167 989 are: