27989382 has 16 divisors (see below), whose sum is σ = 56324160. Its totient is φ = 9272232.

The previous prime is 27989371. The next prime is 27989389. The reversal of 27989382 is 28398972.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27989389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13332 + ... + 15287.

It is an arithmetic number, because the mean of its divisors is an integer number (3520260).

Almost surely, 2^27989382 is an apocalyptic number.

27989382 is an abundant number, since it is smaller than the sum of its proper divisors (28334778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27989382 is a wasteful number, since it uses less digits than its factorization.

27989382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28787.

The product of its digits is 435456, while the sum is 48.

The square root of 27989382 is about 5290.4992203005. The cubic root of 27989382 is about 303.6205084040.

The spelling of 27989382 in words is "twenty-seven million, nine hundred eighty-nine thousand, three hundred eighty-two".