64680712 has 32 divisors (see below), whose sum is σ = 128419200. Its totient is φ = 30456000.

The previous prime is 64680689. The next prime is 64680713. The reversal of 64680712 is 21708646.

It is not an unprimeable number, because it can be changed into a prime (64680713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26337 + ... + 28687.

It is an arithmetic number, because the mean of its divisors is an integer number (4013100).

Almost surely, 2^64680712 is an apocalyptic number.

It is an amenable number.

64680712 is a deficient number, since it is larger than the sum of its proper divisors (63738488).

64680712 is a wasteful number, since it uses less digits than its factorization.

64680712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 64680712 is about 8042.4319704925. The cubic root of 64680712 is about 401.4131516269.

The spelling of 64680712 in words is "sixty-four million, six hundred eighty thousand, seven hundred twelve".