7651664 has 20 divisors (see below), whose sum is σ = 14972256. Its totient is φ = 3787872.

The previous prime is 7651643. The next prime is 7651673. The reversal of 7651664 is 4661567.

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, 674 + ... + 3969.

Almost surely, 2^7651664 is an apocalyptic number.

It is an amenable number.

7651664 is a deficient number, since it is larger than the sum of its proper divisors (7320592).

7651664 is a wasteful number, since it uses less digits than its factorization.

7651664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 4748 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 7651664 is about 2766.1641310667. The cubic root of 7651664 is about 197.0540190443.

The spelling of 7651664 in words is "seven million, six hundred fifty-one thousand, six hundred sixty-four".