639560096 has 48 divisors (see below), whose sum is σ = 1477921536. Its totient is φ = 266685696.

The previous prime is 639560041. The next prime is 639560137. The reversal of 639560096 is 690065936.

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, 30296 + ... + 46871.

It is an arithmetic number, because the mean of its divisors is an integer number (30790032).

Almost surely, 2^639560096 is an apocalyptic number.

It is an amenable number.

639560096 is an abundant number, since it is smaller than the sum of its proper divisors (838361440).

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

639560096 is a wasteful number, since it uses less digits than its factorization.

639560096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77221 (or 77213 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 639560096 is about 25289.5254206163. The cubic root of 639560096 is about 861.5763839992.

The spelling of 639560096 in words is "six hundred thirty-nine million, five hundred sixty thousand, ninety-six".