3643604 has 12 divisors (see below), whose sum is σ = 6484800. Its totient is φ = 1790808.

The previous prime is 3643603. The next prime is 3643609. The reversal of 3643604 is 4063463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643603) 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, 7484 + ... + 7955.

It is an arithmetic number, because the mean of its divisors is an integer number (540400).

Almost surely, 2^3643604 is an apocalyptic number.

It is an amenable number.

3643604 is a deficient number, since it is larger than the sum of its proper divisors (2841196).

3643604 is a wasteful number, since it uses less digits than its factorization.

3643604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15502 (or 15500 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 3643604 is about 1908.8226737966. The cubic root of 3643604 is about 153.8781855611.

The spelling of 3643604 in words is "three million, six hundred forty-three thousand, six hundred four".