64590872 has 8 divisors (see below), whose sum is σ = 121107900. Its totient is φ = 32295432.

The previous prime is 64590857. The next prime is 64590907. The reversal of 64590872 is 27809546.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036922 + ... + 4036937.

Almost surely, 2^64590872 is an apocalyptic number.

It is an amenable number.

64590872 is a deficient number, since it is larger than the sum of its proper divisors (56517028).

64590872 is a wasteful number, since it uses less digits than its factorization.

64590872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073865 (or 8073861 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 64590872 is about 8036.8446544648. The cubic root of 64590872 is about 401.2272143452.

The spelling of 64590872 in words is "sixty-four million, five hundred ninety thousand, eight hundred seventy-two".