6639112 has 16 divisors (see below), whose sum is σ = 13180860. Its totient is φ = 3124224.

The previous prime is 6639109. The next prime is 6639119. The reversal of 6639112 is 2119366.

It can be written as a sum of positive squares in 2 ways, for example, as 6584356 + 54756 = 2566^2 + 234^2 .

It is not an unprimeable number, because it can be changed into a prime (6639119) 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, 24273 + ... + 24544.

Almost surely, 2^6639112 is an apocalyptic number.

It is an amenable number.

6639112 is a deficient number, since it is larger than the sum of its proper divisors (6541748).

6639112 is a wasteful number, since it uses less digits than its factorization.

6639112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48840 (or 48836 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 6639112 is about 2576.6474341671. The cubic root of 6639112 is about 187.9475483673.

The spelling of 6639112 in words is "six million, six hundred thirty-nine thousand, one hundred twelve".