6644612 has 12 divisors (see below), whose sum is σ = 12522636. Its totient is φ = 3066720.

The previous prime is 6644587. The next prime is 6644621. The reversal of 6644612 is 2164466.

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 5827396 = 904^2 + 2414^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63839 + ... + 63942.

It is an arithmetic number, because the mean of its divisors is an integer number (1043553).

Almost surely, 2^6644612 is an apocalyptic number.

It is an amenable number.

6644612 is a deficient number, since it is larger than the sum of its proper divisors (5878024).

6644612 is a wasteful number, since it uses less digits than its factorization.

6644612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127798 (or 127796 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 6644612 is about 2577.7144915603. The cubic root of 6644612 is about 187.9994341314. Note that the first 3 decimals are identical.

The spelling of 6644612 in words is "six million, six hundred forty-four thousand, six hundred twelve".