64957912 has 16 divisors (see below), whose sum is σ = 125996400. Its totient is φ = 31358880.

The previous prime is 64957873. The next prime is 64957931. The reversal of 64957912 is 21975946.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139764 + ... + 140227.

It is an arithmetic number, because the mean of its divisors is an integer number (7874775).

Almost surely, 2^64957912 is an apocalyptic number.

It is an amenable number.

64957912 is a deficient number, since it is larger than the sum of its proper divisors (61038488).

64957912 is a wasteful number, since it uses less digits than its factorization.

64957912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280026 (or 280022 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 64957912 is about 8059.6471386780. The cubic root of 64957912 is about 401.9857754263.

The spelling of 64957912 in words is "sixty-four million, nine hundred fifty-seven thousand, nine hundred twelve".