27983968 has 24 divisors (see below), whose sum is σ = 55248480. Its totient is φ = 13952640.

The previous prime is 27983909. The next prime is 27983981. The reversal of 27983968 is 86938972.

It is a congruent number.

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, 12778 + ... + 14806.

It is an arithmetic number, because the mean of its divisors is an integer number (2302020).

Almost surely, 2^27983968 is an apocalyptic number.

It is an amenable number.

27983968 is a deficient number, since it is larger than the sum of its proper divisors (27264512).

27983968 is a wasteful number, since it uses less digits than its factorization.

27983968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 2462 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 27983968 is about 5289.9875236148. The cubic root of 27983968 is about 303.6009306533.

The spelling of 27983968 in words is "twenty-seven million, nine hundred eighty-three thousand, nine hundred sixty-eight".