27942915 has 64 divisors (see below), whose sum is σ = 60060672. Its totient is φ = 10713600.

The previous prime is 27942877. The next prime is 27942989. The reversal of 27942915 is 51924972.

It is not a de Polignac number, because 27942915 - 2⁹ = 27942403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14085 + ... + 15945.

It is an arithmetic number, because the mean of its divisors is an integer number (938448).

Almost surely, 2^27942915 is an apocalyptic number.

27942915 is an abundant number, since it is smaller than the sum of its proper divisors (32117757).

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

27942915 is a wasteful number, since it uses less digits than its factorization.

27942915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900.

The product of its digits is 45360, while the sum is 39.

The square root of 27942915 is about 5286.1058445703. The cubic root of 27942915 is about 303.4523952631.

The spelling of 27942915 in words is "twenty-seven million, nine hundred forty-two thousand, nine hundred fifteen".