7885664 has 24 divisors (see below), whose sum is σ = 15717240. Its totient is φ = 3894016.

The previous prime is 7885649. The next prime is 7885681. The reversal of 7885664 is 4665887.

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, 1172 + ... + 4140.

It is an arithmetic number, because the mean of its divisors is an integer number (654885).

Almost surely, 2^7885664 is an apocalyptic number.

It is an amenable number.

7885664 is a deficient number, since it is larger than the sum of its proper divisors (7831576).

7885664 is a wasteful number, since it uses less digits than its factorization.

7885664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062 (or 3054 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 7885664 is about 2808.1424465294. The cubic root of 7885664 is about 199.0426244730.

The spelling of 7885664 in words is "seven million, eight hundred eighty-five thousand, six hundred sixty-four".