648880704 has 168 divisors, whose sum is σ = 1974067680. Its totient is φ = 203212800.

The previous prime is 648880699. The next prime is 648880709. The reversal of 648880704 is 407088846.

It is an interprime number because it is at equal distance from previous prime (648880699) and next prime (648880709).

It is a self number, because there is not a number n which added to its sum of digits gives 648880704.

It is not an unprimeable number, because it can be changed into a prime (648880709) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2309044 + ... + 2309324.

Almost surely, 2^648880704 is an apocalyptic number.

648880704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648880704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987033840).

648880704 is an abundant number, since it is smaller than the sum of its proper divisors (1325186976).

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

648880704 is a wasteful number, since it uses less digits than its factorization.

648880704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 648880704 is about 25473.1369093011. The cubic root of 648880704 is about 865.7416001950.

The spelling of 648880704 in words is "six hundred forty-eight million, eight hundred eighty thousand, seven hundred four".