27939 has 8 divisors (see below), whose sum is σ = 38080. Its totient is φ = 18216.

The previous prime is 27919. The next prime is 27941. The reversal of 27939 is 93972.

27939 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27939 - 2⁹ = 27427 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8 and base 13.

It is not an unprimeable number, because it can be changed into a prime (27919) 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, 132 + ... + 270.

It is an arithmetic number, because the mean of its divisors is an integer number (4760).

2²⁷⁹³⁹ is an apocalyptic number.

27939 is a deficient number, since it is larger than the sum of its proper divisors (10141).

27939 is a wasteful number, since it uses less digits than its factorization.

27939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its digits is 3402, while the sum is 30.

The square root of 27939 is about 167.1496335623. The cubic root of 27939 is about 30.3438222659.

The spelling of 27939 in words is "twenty-seven thousand, nine hundred thirty-nine".