27039 has 4 divisors (see below), whose sum is σ = 36056. Its totient is φ = 18024.

The previous prime is 27031. The next prime is 27043. The reversal of 27039 is 93072.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27039 - 2³ = 27031 is a prime.

It is a super-2 number, since 2×27039² = 1462215042, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

27039 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 27039.

It is not an unprimeable number, because it can be changed into a prime (27031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4504 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (9014).

2²⁷⁰³⁹ is an apocalyptic number.

27039 is a deficient number, since it is larger than the sum of its proper divisors (9017).

27039 is an equidigital number, since it uses as much as digits as its factorization.

27039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 27039 is about 164.4353976490. The cubic root of 27039 is about 30.0144374953.

The spelling of 27039 in words is "twenty-seven thousand, thirty-nine".