764913864 has 64 divisors (see below), whose sum is σ = 2246610240. Its totient is φ = 213960960.

The previous prime is 764913859. The next prime is 764913883. The reversal of 764913864 is 468319467.

764913864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108007 + ... + 114870.

It is an arithmetic number, because the mean of its divisors is an integer number (35103285).

Almost surely, 2^764913864 is an apocalyptic number.

It is an amenable number.

764913864 is an abundant number, since it is smaller than the sum of its proper divisors (1481696376).

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

764913864 is a wasteful number, since it uses less digits than its factorization.

764913864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222910 (or 222906 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 764913864 is about 27657.0762012184. The cubic root of 764913864 is about 914.5431001448.

It can be divided in two parts, 764 and 913864, that added together give a triangular number (914628 = T₁₃₅₂).

The spelling of 764913864 in words is "seven hundred sixty-four million, nine hundred thirteen thousand, eight hundred sixty-four".