764576964 has 18 divisors (see below), whose sum is σ = 1932680750. Its totient is φ = 254858976.

The previous prime is 764576951. The next prime is 764576977. The reversal of 764576964 is 469675467.

764576964 is a `hidden beast` number, since 7 + 6 + 4 + 576 + 9 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (764576951) and next prime (764576977).

It can be written as a sum of positive squares in only one way, i.e., 432972864 + 331604100 = 20808^2 + 18210^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 764576964.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10619089 + ... + 10619160.

Almost surely, 2^764576964 is an apocalyptic number.

It is an amenable number.

764576964 is an abundant number, since it is smaller than the sum of its proper divisors (1168103786).

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

764576964 is a wasteful number, since it uses less digits than its factorization.

764576964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21238259 (or 21238254 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 764576964 is about 27650.9848649194. The cubic root of 764576964 is about 914.4088127734.

The spelling of 764576964 in words is "seven hundred sixty-four million, five hundred seventy-six thousand, nine hundred sixty-four".