2804664 has 32 divisors (see below), whose sum is σ = 7071120. Its totient is φ = 926976.

The previous prime is 2804639. The next prime is 2804693. The reversal of 2804664 is 4664082.

It is a super-2 number, since 2×2804664² = 15732280305792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2862 + ... + 3714.

2^2804664 is an apocalyptic number.

2804664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2804664 is an abundant number, since it is smaller than the sum of its proper divisors (4266456).

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

2804664 is a wasteful number, since it uses less digits than its factorization.

2804664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 2804664 is about 1674.7131097594. The cubic root of 2804664 is about 141.0241898038.

The spelling of 2804664 in words is "two million, eight hundred four thousand, six hundred sixty-four".