It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 674 is not a prime number.
For example, 988 674 can be divided by 2: 988 674 / 2 = 494 337.
For 988 674 to be a prime number, it would have been required that 988 674 has only two divisors, i.e., itself and 1.
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988 674 is an even number, because it is evenly divisible by 2: 988 674 / 2 = 494 337.
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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 988 674 is about 994.321.
Thus, the square root of 988 674 is not an integer, and therefore 988 674 is not a square number.
The square of a number (here 988 674) is the result of the product of this number (988 674) by itself (i.e., 988 674 × 988 674); the square of 988 674 is sometimes called "raising 988 674 to the power 2", or "988 674 squared".
The square of 988 674 is 977 476 278 276 because 988 674 × 988 674 = 988 6742 = 977 476 278 276.
As a consequence, 988 674 is the square root of 977 476 278 276.
The multiples of 988 674 are all integers evenly divisible by 988 674, that is all numbers such that the remainder of the division by 988 674 is zero. There are infinitely many multiples of 988 674. The smallest multiples of 988 674 are: