64696312 has 16 divisors (see below), whose sum is σ = 121572360. Its totient is φ = 32277024.

The previous prime is 64696297. The next prime is 64696321. The reversal of 64696312 is 21369646.

It is a happy number.

It is a super-2 number, since 2×64696312² = 8371225572802688, which contains 22 as substring.

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, 4923 + ... + 12394.

Almost surely, 2^64696312 is an apocalyptic number.

It is an amenable number.

64696312 is a deficient number, since it is larger than the sum of its proper divisors (56876048).

64696312 is a wasteful number, since it uses less digits than its factorization.

64696312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17790 (or 17786 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 64696312 is about 8043.4017679089. The cubic root of 64696312 is about 401.4454206069.

The spelling of 64696312 in words is "sixty-four million, six hundred ninety-six thousand, three hundred twelve".