It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 800 464 is not a prime number.
For example, 800 464 can be divided by 2: 800 464 / 2 = 400 232.
For 800 464 to be a prime number, it would have been required that 800 464 has only two divisors, i.e., itself and 1.
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800 464 is an even number, because it is evenly divisible by 2: 800 464 / 2 = 400 232.
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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 800 464 is about 894.687.
Thus, the square root of 800 464 is not an integer, and therefore 800 464 is not a square number.
The square of a number (here 800 464) is the result of the product of this number (800 464) by itself (i.e., 800 464 × 800 464); the square of 800 464 is sometimes called "raising 800 464 to the power 2", or "800 464 squared".
The square of 800 464 is 640 742 615 296 because 800 464 × 800 464 = 800 4642 = 640 742 615 296.
As a consequence, 800 464 is the square root of 640 742 615 296.
The multiples of 800 464 are all integers evenly divisible by 800 464, that is all numbers such that the remainder of the division by 800 464 is zero. There are infinitely many multiples of 800 464. The smallest multiples of 800 464 are: