27939992 has 16 divisors (see below), whose sum is σ = 54194400. Its totient is φ = 13488160.

The previous prime is 27939979. The next prime is 27939997. The reversal of 27939992 is 29993972.

It is a self number, because there is not a number n which added to its sum of digits gives 27939992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27939997) 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 in 3 ways as a sum of consecutive naturals, for example, 59984 + ... + 60447.

It is an arithmetic number, because the mean of its divisors is an integer number (3387150).

Almost surely, 2^27939992 is an apocalyptic number.

It is an amenable number.

27939992 is a deficient number, since it is larger than the sum of its proper divisors (26254408).

27939992 is a wasteful number, since it uses less digits than its factorization.

27939992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120466 (or 120462 counting only the distinct ones).

The product of its digits is 551124, while the sum is 50.

The square root of 27939992 is about 5285.8293578208. The cubic root of 27939992 is about 303.4418139013.

The spelling of 27939992 in words is "twenty-seven million, nine hundred thirty-nine thousand, nine hundred ninety-two".