3915664 has 40 divisors (see below), whose sum is σ = 7999488. Its totient is φ = 1854720.

The previous prime is 3915631. The next prime is 3915683. The reversal of 3915664 is 4665193.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30769 + ... + 30895.

Almost surely, 2^3915664 is an apocalyptic number.

It is an amenable number.

3915664 is an abundant number, since it is smaller than the sum of its proper divisors (4083824).

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

3915664 is a wasteful number, since it uses less digits than its factorization.

3915664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 217 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 3915664 is about 1978.8036789940. The cubic root of 3915664 is about 157.6165459708.

The spelling of 3915664 in words is "three million, nine hundred fifteen thousand, six hundred sixty-four".