3685504 has 16 divisors (see below), whose sum is σ = 7342470. Its totient is φ = 1842688.

The previous prime is 3685501. The next prime is 3685511. The reversal of 3685504 is 4055863.

It can be written as a sum of positive squares in only one way, i.e., 3415104 + 270400 = 1848^2 + 520^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 not an unprimeable number, because it can be changed into a prime (3685501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14269 + ... + 14524.

Almost surely, 2^3685504 is an apocalyptic number.

It is an amenable number.

3685504 is a deficient number, since it is larger than the sum of its proper divisors (3656966).

3685504 is an equidigital number, since it uses as much as digits as its factorization.

3685504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28807 (or 28795 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 3685504 is about 1919.7666524867. The cubic root of 3685504 is about 154.4657849196.

The spelling of 3685504 in words is "three million, six hundred eighty-five thousand, five hundred four".