27979112 has 64 divisors (see below), whose sum is σ = 63037440. Its totient is φ = 11390400.

The previous prime is 27979079. The next prime is 27979123. The reversal of 27979112 is 21197972.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123143 + ... + 123369.

It is an arithmetic number, because the mean of its divisors is an integer number (984960).

Almost surely, 2^27979112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27979112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31518720).

27979112 is an abundant number, since it is smaller than the sum of its proper divisors (35058328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27979112 is a wasteful number, since it uses less digits than its factorization.

27979112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 338 counting only the distinct ones).

The product of its digits is 15876, while the sum is 38.

The square root of 27979112 is about 5289.5285234130. The cubic root of 27979112 is about 303.5833685572.

The spelling of 27979112 in words is "twenty-seven million, nine hundred seventy-nine thousand, one hundred twelve".