27987234 has 32 divisors (see below), whose sum is σ = 63037440. Its totient is φ = 8206800.

The previous prime is 27987229. The next prime is 27987257. The reversal of 27987234 is 43278972.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4794 + ... + 8885.

It is an arithmetic number, because the mean of its divisors is an integer number (1969920).

Almost surely, 2^27987234 is an apocalyptic number.

27987234 is an abundant number, since it is smaller than the sum of its proper divisors (35050206).

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

27987234 is a wasteful number, since it uses less digits than its factorization.

27987234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13726.

The product of its digits is 169344, while the sum is 42.

The square root of 27987234 is about 5290.2962109886. The cubic root of 27987234 is about 303.6127412499.

The spelling of 27987234 in words is "twenty-seven million, nine hundred eighty-seven thousand, two hundred thirty-four".