It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 3 509 248 is not a prime number.
For example, 3 509 248 can be divided by 2: 3 509 248 / 2 = 1 754 624.
For 3 509 248 to be a prime number, it would have been required that 3 509 248 has only two divisors, i.e., itself and 1.
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3 509 248 is an even number, because it is evenly divisible by 2: 3 509 248 / 2 = 1 754 624.
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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 3 509 248 is about 1 873.299.
Thus, the square root of 3 509 248 is not an integer, and therefore 3 509 248 is not a square number.
The square of a number (here 3 509 248) is the result of the product of this number (3 509 248) by itself (i.e., 3 509 248 × 3 509 248); the square of 3 509 248 is sometimes called "raising 3 509 248 to the power 2", or "3 509 248 squared".
The square of 3 509 248 is 12 314 821 525 504 because 3 509 248 × 3 509 248 = 3 509 2482 = 12 314 821 525 504.
As a consequence, 3 509 248 is the square root of 12 314 821 525 504.
The multiples of 3 509 248 are all integers evenly divisible by 3 509 248, that is all numbers such that the remainder of the division by 3 509 248 is zero. There are infinitely many multiples of 3 509 248. The smallest multiples of 3 509 248 are: