804989664 has 60 divisors (see below), whose sum is σ = 2367459864. Its totient is φ = 268329024.

The previous prime is 804989651. The next prime is 804989707. The reversal of 804989664 is 466989408.

804989664 is a `hidden beast` number, since 8 + 0 + 498 + 96 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 804989664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 152692 + ... + 157875.

Almost surely, 2^804989664 is an apocalyptic number.

It is an amenable number.

804989664 is an abundant number, since it is smaller than the sum of its proper divisors (1562470200).

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

804989664 is a wasteful number, since it uses less digits than its factorization.

804989664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310589 (or 310572 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 804989664 is about 28372.3397695713. The cubic root of 804989664 is about 930.2437654447.

The spelling of 804989664 in words is "eight hundred four million, nine hundred eighty-nine thousand, six hundred sixty-four".