27959 has 4 divisors (see below), whose sum is σ = 28416. Its totient is φ = 27504.

The previous prime is 27953. The next prime is 27961. The reversal of 27959 is 95972.

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

It is a cyclic number.

It is not a de Polignac number, because 27959 - 2⁴ = 27943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27953) 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, 119 + ... + 264.

It is an arithmetic number, because the mean of its divisors is an integer number (7104).

2²⁷⁹⁵⁹ is an apocalyptic number.

27959 is a deficient number, since it is larger than the sum of its proper divisors (457).

27959 is an equidigital number, since it uses as much as digits as its factorization.

27959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456.

The product of its digits is 5670, while the sum is 32.

The square root of 27959 is about 167.2094494937. The cubic root of 27959 is about 30.3510610324.

It can be divided in two parts, 279 and 59, that multiplied together give a palindrome (16461).

The spelling of 27959 in words is "twenty-seven thousand, nine hundred fifty-nine".