6656444 has 12 divisors (see below), whose sum is σ = 12024768. Its totient is φ = 3220800.

The previous prime is 6656437. The next prime is 6656449. The reversal of 6656444 is 4446566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656449) 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, 26717 + ... + 26964.

It is an arithmetic number, because the mean of its divisors is an integer number (1002064).

Almost surely, 2^6656444 is an apocalyptic number.

It is an amenable number.

6656444 is a deficient number, since it is larger than the sum of its proper divisors (5368324).

6656444 is a wasteful number, since it uses less digits than its factorization.

6656444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53716 (or 53714 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 6656444 is about 2580.0085271177. The cubic root of 6656444 is about 188.1109575873.

The spelling of 6656444 in words is "six million, six hundred fifty-six thousand, four hundred forty-four".