64685812 has 12 divisors (see below), whose sum is σ = 113256640. Its totient is φ = 32326776.

The previous prime is 64685807. The next prime is 64685837. The reversal of 64685812 is 21858646.

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 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, 12739 + ... + 17077.

Almost surely, 2^64685812 is an apocalyptic number.

It is an amenable number.

64685812 is a deficient number, since it is larger than the sum of its proper divisors (48570828).

64685812 is a wasteful number, since it uses less digits than its factorization.

64685812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070 (or 8068 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 64685812 is about 8042.7490325137. The cubic root of 64685812 is about 401.4237016719.

The spelling of 64685812 in words is "sixty-four million, six hundred eighty-five thousand, eight hundred twelve".