27137889 has 8 divisors (see below), whose sum is σ = 40204320. Its totient is φ = 18091908.

The previous prime is 27137867. The next prime is 27137893. The reversal of 27137889 is 98873172.

27137889 is a `hidden beast` number, since 271 + 378 + 8 + 9 = 666.

It is not a de Polignac number, because 27137889 - 2⁵ = 27137857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27137809) 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 7 ways as a sum of consecutive naturals, for example, 502527 + ... + 502580.

It is an arithmetic number, because the mean of its divisors is an integer number (5025540).

Almost surely, 2^27137889 is an apocalyptic number.

It is an amenable number.

27137889 is a deficient number, since it is larger than the sum of its proper divisors (13066431).

27137889 is a wasteful number, since it uses less digits than its factorization.

27137889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005116 (or 1005110 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 27137889 is about 5209.4039006397. The cubic root of 27137889 is about 300.5098330766.

The spelling of 27137889 in words is "twenty-seven million, one hundred thirty-seven thousand, eight hundred eighty-nine".