6628564 has 12 divisors (see below), whose sum is σ = 11670624. Its totient is φ = 3294104.

The previous prime is 6628561. The next prime is 6628571. The reversal of 6628564 is 4658266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6628561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294 + ... + 5629.

It is an arithmetic number, because the mean of its divisors is an integer number (972552).

Almost surely, 2^6628564 is an apocalyptic number.

It is an amenable number.

6628564 is a deficient number, since it is larger than the sum of its proper divisors (5042060).

6628564 is a wasteful number, since it uses less digits than its factorization.

6628564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094 (or 10092 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 6628564 is about 2574.5997747223. The cubic root of 6628564 is about 187.8479606733.

The spelling of 6628564 in words is "six million, six hundred twenty-eight thousand, five hundred sixty-four".