27912928 has 24 divisors (see below), whose sum is σ = 55363392. Its totient is φ = 13852416.

The previous prime is 27912917. The next prime is 27912947. The reversal of 27912928 is 82921972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201 + ... + 7567.

It is an arithmetic number, because the mean of its divisors is an integer number (2306808).

Almost surely, 2^27912928 is an apocalyptic number.

It is an amenable number.

27912928 is a deficient number, since it is larger than the sum of its proper divisors (27450464).

27912928 is a wasteful number, since it uses less digits than its factorization.

27912928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514 (or 6506 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 27912928 is about 5283.2686851986. The cubic root of 27912928 is about 303.3438062103.

The spelling of 27912928 in words is "twenty-seven million, nine hundred twelve thousand, nine hundred twenty-eight".