6626656 has 24 divisors (see below), whose sum is σ = 13139280. Its totient is φ = 3289728.

The previous prime is 6626647. The next prime is 6626657. The reversal of 6626656 is 6566266.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626657) 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, 4365 + ... + 5683.

It is an arithmetic number, because the mean of its divisors is an integer number (547470).

Almost surely, 2^6626656 is an apocalyptic number.

It is an amenable number.

6626656 is a deficient number, since it is larger than the sum of its proper divisors (6512624).

6626656 is a wasteful number, since it uses less digits than its factorization.

6626656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1478 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

The square root of 6626656 is about 2574.2292050243. The cubic root of 6626656 is about 187.8299352356.

The spelling of 6626656 in words is "six million, six hundred twenty-six thousand, six hundred fifty-six".