3904564 has 12 divisors (see below), whose sum is σ = 6853924. Its totient is φ = 1946304.

The previous prime is 3904547. The next prime is 3904591. The reversal of 3904564 is 4654093.

3904564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3168400 + 736164 = 1780^2 + 858^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184 + ... + 2800.

Almost surely, 2^3904564 is an apocalyptic number.

It is an amenable number.

3904564 is a deficient number, since it is larger than the sum of its proper divisors (2949360).

3904564 is a wasteful number, since it uses less digits than its factorization.

3904564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 2992 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3904564 is about 1975.9969635604. The cubic root of 3904564 is about 157.4674695560.

The spelling of 3904564 in words is "three million, nine hundred four thousand, five hundred sixty-four".