3663604 has 12 divisors (see below), whose sum is σ = 7327264. Its totient is φ = 1570104.

The previous prime is 3663587. The next prime is 3663617. The reversal of 3663604 is 4063663.

3663604 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 130843 = 3663604 / (3 + 6 + 6 + 3 + 6 + 0 + 4).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65394 + ... + 65449.

Almost surely, 2^3663604 is an apocalyptic number.

It is an amenable number.

3663604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3663604 is a wasteful number, since it uses less digits than its factorization.

3663604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130854 (or 130852 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 3663604 is about 1914.0543356969. The cubic root of 3663604 is about 154.1592213919.

The spelling of 3663604 in words is "three million, six hundred sixty-three thousand, six hundred four".