64690914 has 16 divisors (see below), whose sum is σ = 129954528. Its totient is φ = 21468192.

The previous prime is 64690903. The next prime is 64690939. The reversal of 64690914 is 41909646.

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, 22387 + ... + 25110.

It is an arithmetic number, because the mean of its divisors is an integer number (8122158).

Almost surely, 2^64690914 is an apocalyptic number.

64690914 is an abundant number, since it is smaller than the sum of its proper divisors (65263614).

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

64690914 is a wasteful number, since it uses less digits than its factorization.

64690914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47729.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 64690914 is about 8043.0662063668. The cubic root of 64690914 is about 401.4342552994.

The spelling of 64690914 in words is "sixty-four million, six hundred ninety thousand, nine hundred fourteen".