27979196 has 24 divisors (see below), whose sum is σ = 57103200. Its totient is φ = 11990496.

The previous prime is 27979181. The next prime is 27979199. The reversal of 27979196 is 69197972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27979199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8825 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (2379300).

Almost surely, 2^27979196 is an apocalyptic number.

It is an amenable number.

27979196 is an abundant number, since it is smaller than the sum of its proper divisors (29124004).

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

27979196 is a wasteful number, since it uses less digits than its factorization.

27979196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20418 (or 20402 counting only the distinct ones).

The product of its digits is 428652, while the sum is 50.

The square root of 27979196 is about 5289.5364636233. The cubic root of 27979196 is about 303.5836723669.

The spelling of 27979196 in words is "twenty-seven million, nine hundred seventy-nine thousand, one hundred ninety-six".