6628672 has 14 divisors (see below), whose sum is σ = 13153898. Its totient is φ = 3314304.

The previous prime is 6628667. The next prime is 6628673. The reversal of 6628672 is 2768266.

It can be written as a sum of positive squares in only one way, i.e., 3474496 + 3154176 = 1864^2 + 1776^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6628673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51723 + ... + 51850.

Almost surely, 2^6628672 is an apocalyptic number.

It is an amenable number.

6628672 is a deficient number, since it is larger than the sum of its proper divisors (6525226).

6628672 is a wasteful number, since it uses less digits than its factorization.

6628672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103585 (or 103575 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 6628672 is about 2574.6207487706. The cubic root of 6628672 is about 187.8489808777.

Adding to 6628672 its product of digits (48384), we get a square (6677056 = 2584²).

The spelling of 6628672 in words is "six million, six hundred twenty-eight thousand, six hundred seventy-two".