64928164 has 12 divisors (see below), whose sum is σ = 129856384. Its totient is φ = 27826344.

The previous prime is 64928147. The next prime is 64928173. The reversal of 64928164 is 46182946.

64928164 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159404 + ... + 1159459.

Almost surely, 2^64928164 is an apocalyptic number.

It is an amenable number.

64928164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64928164 is a wasteful number, since it uses less digits than its factorization.

64928164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318874 (or 2318872 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 64928164 is about 8057.8014371167. The cubic root of 64928164 is about 401.9244018466.

The spelling of 64928164 in words is "sixty-four million, nine hundred twenty-eight thousand, one hundred sixty-four".