64790885 has 16 divisors (see below), whose sum is σ = 83327616. Its totient is φ = 48235968.

The previous prime is 64790867. The next prime is 64790911. The reversal of 64790885 is 58809746.

It is not a de Polignac number, because 64790885 - 2⁸ = 64790629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3359 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (5207976).

Almost surely, 2^64790885 is an apocalyptic number.

It is an amenable number.

64790885 is a deficient number, since it is larger than the sum of its proper divisors (18536731).

64790885 is a wasteful number, since it uses less digits than its factorization.

64790885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 64790885 is about 8049.2785390990. The cubic root of 64790885 is about 401.6409361991.

The spelling of 64790885 in words is "sixty-four million, seven hundred ninety thousand, eight hundred eighty-five".