648880860 has 24 divisors (see below), whose sum is σ = 1816866576. Its totient is φ = 173034880.

The previous prime is 648880847. The next prime is 648880873. The reversal of 648880860 is 68088846.

648880860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (648880847) and next prime (648880873).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5407281 + ... + 5407400.

It is an arithmetic number, because the mean of its divisors is an integer number (75702774).

Almost surely, 2^648880860 is an apocalyptic number.

648880860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648880860 is an abundant number, since it is smaller than the sum of its proper divisors (1167985716).

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

648880860 is a wasteful number, since it uses less digits than its factorization.

648880860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10814693 (or 10814691 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 648880860 is about 25473.1399713502. The cubic root of 648880860 is about 865.7416695738.

The spelling of 648880860 in words is "six hundred forty-eight million, eight hundred eighty thousand, eight hundred sixty".