27989334 has 32 divisors (see below), whose sum is σ = 62375040. Its totient is φ = 9303336.

The previous prime is 27989333. The next prime is 27989359. The reversal of 27989334 is 43398972.

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 27989334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27989333) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31257 + ... + 32139.

It is an arithmetic number, because the mean of its divisors is an integer number (1949220).

Almost surely, 2^27989334 is an apocalyptic number.

27989334 is an abundant number, since it is smaller than the sum of its proper divisors (34385706).

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

27989334 is a wasteful number, since it uses less digits than its factorization.

27989334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1475 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 27989334 is about 5290.4946838646. The cubic root of 27989334 is about 303.6203348407.

The spelling of 27989334 in words is "twenty-seven million, nine hundred eighty-nine thousand, three hundred thirty-four".