3663984 has 20 divisors (see below), whose sum is σ = 9465416. Its totient is φ = 1221312.

The previous prime is 3663971. The next prime is 3664013. The reversal of 3663984 is 4893663.

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, 38119 + ... + 38214.

Almost surely, 2^3663984 is an apocalyptic number.

It is an amenable number.

3663984 is an abundant number, since it is smaller than the sum of its proper divisors (5801432).

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

3663984 is a wasteful number, since it uses less digits than its factorization.

3663984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76344 (or 76338 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 3663984 is about 1914.1535988525. The cubic root of 3663984 is about 154.1645511600.

The spelling of 3663984 in words is "three million, six hundred sixty-three thousand, nine hundred eighty-four".