7172664 has 16 divisors (see below), whose sum is σ = 17931720. Its totient is φ = 2390880.

The previous prime is 7172639. The next prime is 7172677. The reversal of 7172664 is 4662717.

7172664 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 149407 + ... + 149454.

Almost surely, 2^7172664 is an apocalyptic number.

It is an amenable number.

7172664 is an abundant number, since it is smaller than the sum of its proper divisors (10759056).

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

7172664 is a wasteful number, since it uses less digits than its factorization.

7172664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298870 (or 298866 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 7172664 is about 2678.1829661171. The cubic root of 7172664 is about 192.8531909047.

The spelling of 7172664 in words is "seven million, one hundred seventy-two thousand, six hundred sixty-four".