64918712 has 32 divisors (see below), whose sum is σ = 127557120. Its totient is φ = 30935520.

The previous prime is 64918697. The next prime is 64918739. The reversal of 64918712 is 21781946.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 14663 + ... + 18569.

It is an arithmetic number, because the mean of its divisors is an integer number (3986160).

Almost surely, 2^64918712 is an apocalyptic number.

64918712 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64918712 is a deficient number, since it is larger than the sum of its proper divisors (62638408).

64918712 is a wasteful number, since it uses less digits than its factorization.

64918712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011 (or 4007 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 64918712 is about 8057.2149034266. The cubic root of 64918712 is about 401.9048973482.

The spelling of 64918712 in words is "sixty-four million, nine hundred eighteen thousand, seven hundred twelve".