64704680 has 32 divisors (see below), whose sum is σ = 148975200. Its totient is φ = 25279296.

The previous prime is 64704667. The next prime is 64704697. The reversal of 64704680 is 8640746.

64704680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64704680² = 8373391227804800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64704680.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17090 + ... + 20529.

It is an arithmetic number, because the mean of its divisors is an integer number (4655475).

Almost surely, 2^64704680 is an apocalyptic number.

It is an amenable number.

64704680 is an abundant number, since it is smaller than the sum of its proper divisors (84270520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64704680 is a wasteful number, since it uses less digits than its factorization.

64704680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37673 (or 37669 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 64704680 is about 8043.9219290095. The cubic root of 64704680 is about 401.4627278812.

The spelling of 64704680 in words is "sixty-four million, seven hundred four thousand, six hundred eighty".