27912904 has 16 divisors (see below), whose sum is σ = 52412400. Its totient is φ = 13936272.

The previous prime is 27912889. The next prime is 27912917. The reversal of 27912904 is 40921972.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27912904.

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, 4507 + ... + 8725.

It is an arithmetic number, because the mean of its divisors is an integer number (3275775).

Almost surely, 2^27912904 is an apocalyptic number.

It is an amenable number.

27912904 is a deficient number, since it is larger than the sum of its proper divisors (24499496).

27912904 is a wasteful number, since it uses less digits than its factorization.

27912904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052 (or 5048 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 27912904 is about 5283.2664138769. The cubic root of 27912904 is about 303.3437192703.

The spelling of 27912904 in words is "twenty-seven million, nine hundred twelve thousand, nine hundred four".