It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 702 is not a prime number.
For example, 489 702 can be divided by 2: 489 702 / 2 = 244 851.
For 489 702 to be a prime number, it would have been required that 489 702 has only two divisors, i.e., itself and 1.
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489 702 is an even number, because it is evenly divisible by 2: 489 702 / 2 = 244 851.
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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 489 702 is about 699.787.
Thus, the square root of 489 702 is not an integer, and therefore 489 702 is not a square number.
The square of a number (here 489 702) is the result of the product of this number (489 702) by itself (i.e., 489 702 × 489 702); the square of 489 702 is sometimes called "raising 489 702 to the power 2", or "489 702 squared".
The square of 489 702 is 239 808 048 804 because 489 702 × 489 702 = 489 7022 = 239 808 048 804.
As a consequence, 489 702 is the square root of 239 808 048 804.
The multiples of 489 702 are all integers evenly divisible by 489 702, that is all numbers such that the remainder of the division by 489 702 is zero. There are infinitely many multiples of 489 702. The smallest multiples of 489 702 are: