648937584 has 30 divisors (see below), whose sum is σ = 1816124336. Its totient is φ = 216312480.

The previous prime is 648937577. The next prime is 648937591. The reversal of 648937584 is 485739846.

It is an interprime number because it is at equal distance from previous prime (648937577) and next prime (648937591).

It is a super-2 number, since 2×648937584² = 842239975855514112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648937584.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2253112 + ... + 2253399.

Almost surely, 2^648937584 is an apocalyptic number.

It is an amenable number.

648937584 is an abundant number, since it is smaller than the sum of its proper divisors (1167186752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648937584 is a wasteful number, since it uses less digits than its factorization.

648937584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506525 (or 4506516 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 648937584 is about 25474.2533551035. The cubic root of 648937584 is about 865.7668960330.

The spelling of 648937584 in words is "six hundred forty-eight million, nine hundred thirty-seven thousand, five hundred eighty-four".