3656804 has 12 divisors (see below), whose sum is σ = 6447084. Its totient is φ = 1814784.

The previous prime is 3656801. The next prime is 3656827. The reversal of 3656804 is 4086563.

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 2715904 = 970^2 + 1648^2 .

It is not an unprimeable number, because it can be changed into a prime (3656801) 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, 2789 + ... + 3884.

It is an arithmetic number, because the mean of its divisors is an integer number (537257).

Almost surely, 2^3656804 is an apocalyptic number.

It is an amenable number.

3656804 is a deficient number, since it is larger than the sum of its proper divisors (2790280).

3656804 is a wasteful number, since it uses less digits than its factorization.

3656804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814 (or 6812 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3656804 is about 1912.2771765620. The cubic root of 3656804 is about 154.0637842262.

The spelling of 3656804 in words is "three million, six hundred fifty-six thousand, eight hundred four".