7628664 has 32 divisors (see below), whose sum is σ = 19480320. Its totient is φ = 2488416.

The previous prime is 7628659. The next prime is 7628681. The reversal of 7628664 is 4668267.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (608760).

Almost surely, 2^7628664 is an apocalyptic number.

It is an amenable number.

7628664 is an abundant number, since it is smaller than the sum of its proper divisors (11851656).

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

7628664 is a wasteful number, since it uses less digits than its factorization.

7628664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819 (or 6815 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 7628664 is about 2762.0036205624. The cubic root of 7628664 is about 196.8563805016.

The spelling of 7628664 in words is "seven million, six hundred twenty-eight thousand, six hundred sixty-four".