27968992 has 24 divisors (see below), whose sum is σ = 56964600. Its totient is φ = 13501824.

The previous prime is 27968977. The next prime is 27968999. The reversal of 27968992 is 29986972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27968999) 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, 14142 + ... + 15997.

It is an arithmetic number, because the mean of its divisors is an integer number (2373525).

Almost surely, 2^27968992 is an apocalyptic number.

It is an amenable number.

27968992 is an abundant number, since it is smaller than the sum of its proper divisors (28995608).

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

27968992 is a wasteful number, since it uses less digits than its factorization.

27968992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30178 (or 30170 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 27968992 is about 5288.5718298989. The cubic root of 27968992 is about 303.5467622707.

The spelling of 27968992 in words is "twenty-seven million, nine hundred sixty-eight thousand, nine hundred ninety-two".