It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 567 is not a prime number.
For example, 988 567 can be divided by 17: 988 567 / 17 = 58 151.
For 988 567 to be a prime number, it would have been required that 988 567 has only two divisors, i.e., itself and 1.
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988 567 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 988 567 is about 994.267.
Thus, the square root of 988 567 is not an integer, and therefore 988 567 is not a square number.
The square of a number (here 988 567) is the result of the product of this number (988 567) by itself (i.e., 988 567 × 988 567); the square of 988 567 is sometimes called "raising 988 567 to the power 2", or "988 567 squared".
The square of 988 567 is 977 264 713 489 because 988 567 × 988 567 = 988 5672 = 977 264 713 489.
As a consequence, 988 567 is the square root of 977 264 713 489.
The multiples of 988 567 are all integers evenly divisible by 988 567, that is all numbers such that the remainder of the division by 988 567 is zero. There are infinitely many multiples of 988 567. The smallest multiples of 988 567 are: