6644896 has 12 divisors (see below), whose sum is σ = 13082202. Its totient is φ = 3322432.

The previous prime is 6644887. The next prime is 6644903. The reversal of 6644896 is 6984466.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 1354896 = 2300^2 + 1164^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103795 + ... + 103858.

Almost surely, 2^6644896 is an apocalyptic number.

It is an amenable number.

6644896 is a deficient number, since it is larger than the sum of its proper divisors (6437306).

6644896 is a wasteful number, since it uses less digits than its factorization.

6644896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207663 (or 207655 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 6644896 is about 2577.7695785310. The cubic root of 6644896 is about 188.0021125461.

The spelling of 6644896 in words is "six million, six hundred forty-four thousand, eight hundred ninety-six".