64918936 has 16 divisors (see below), whose sum is σ = 125920800. Its totient is φ = 31340064.

The previous prime is 64918897. The next prime is 64918963. The reversal of 64918936 is 63981946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139680 + ... + 140143.

It is an arithmetic number, because the mean of its divisors is an integer number (7870050).

Almost surely, 2^64918936 is an apocalyptic number.

It is an amenable number.

64918936 is a deficient number, since it is larger than the sum of its proper divisors (61001864).

64918936 is a wasteful number, since it uses less digits than its factorization.

64918936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279858 (or 279854 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 64918936 is about 8057.2288039995. The cubic root of 64918936 is about 401.9053596011.

The spelling of 64918936 in words is "sixty-four million, nine hundred eighteen thousand, nine hundred thirty-six".