764004 has 12 divisors (see below), whose sum is σ = 1782704. Its totient is φ = 254664.

The previous prime is 764003. The next prime is 764011. The reversal of 764004 is 400467.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×764004² = 1167404224032, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (764003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31822 + ... + 31845.

2⁷⁶⁴⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

764004 is an abundant number, since it is smaller than the sum of its proper divisors (1018700).

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

764004 is a wasteful number, since it uses less digits than its factorization.

764004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63674 (or 63672 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 764004 is about 874.0732234773. The cubic root of 764004 is about 91.4180340348.

The spelling of 764004 in words is "seven hundred sixty-four thousand, four".