It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 802 464 is not a prime number.
For example, 802 464 can be divided by 2: 802 464 / 2 = 401 232.
For 802 464 to be a prime number, it would have been required that 802 464 has only two divisors, i.e., itself and 1.
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802 464 is an even number, because it is evenly divisible by 2: 802 464 / 2 = 401 232.
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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 802 464 is about 895.804.
Thus, the square root of 802 464 is not an integer, and therefore 802 464 is not a square number.
The square of a number (here 802 464) is the result of the product of this number (802 464) by itself (i.e., 802 464 × 802 464); the square of 802 464 is sometimes called "raising 802 464 to the power 2", or "802 464 squared".
The square of 802 464 is 643 948 471 296 because 802 464 × 802 464 = 802 4642 = 643 948 471 296.
As a consequence, 802 464 is the square root of 643 948 471 296.
The multiples of 802 464 are all integers evenly divisible by 802 464, that is all numbers such that the remainder of the division by 802 464 is zero. There are infinitely many multiples of 802 464. The smallest multiples of 802 464 are: