3938664 has 32 divisors (see below), whose sum is σ = 10188000. Its totient is φ = 1267392.

The previous prime is 3938657. The next prime is 3938699. The reversal of 3938664 is 4668393.

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, 2134 + ... + 3525.

It is an arithmetic number, because the mean of its divisors is an integer number (318375).

Almost surely, 2^3938664 is an apocalyptic number.

It is an amenable number.

3938664 is an abundant number, since it is smaller than the sum of its proper divisors (6249336).

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

3938664 is a wasteful number, since it uses less digits than its factorization.

3938664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5697 (or 5693 counting only the distinct ones).

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

The square root of 3938664 is about 1984.6067620564. The cubic root of 3938664 is about 157.9245487101.

The spelling of 3938664 in words is "three million, nine hundred thirty-eight thousand, six hundred sixty-four".