27889868 has 6 divisors (see below), whose sum is σ = 48807276. Its totient is φ = 13944932.

The previous prime is 27889861. The next prime is 27889879. The reversal of 27889868 is 86898872.

It is not an unprimeable number, because it can be changed into a prime (27889861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3486230 + ... + 3486237.

It is an arithmetic number, because the mean of its divisors is an integer number (8134546).

Almost surely, 2^27889868 is an apocalyptic number.

It is an amenable number.

27889868 is a deficient number, since it is larger than the sum of its proper divisors (20917408).

27889868 is a wasteful number, since it uses less digits than its factorization.

27889868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972471 (or 6972469 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 56.

The square root of 27889868 is about 5281.0858731893. The cubic root of 27889868 is about 303.2602483291.

The spelling of 27889868 in words is "twenty-seven million, eight hundred eighty-nine thousand, eight hundred sixty-eight".