27317 has 4 divisors (see below), whose sum is σ = 27840. Its totient is φ = 26796.

The previous prime is 27299. The next prime is 27329. The reversal of 27317 is 71372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27317 - 2⁶ = 27253 is a prime.

It is a Duffinian number.

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 27317.

It is not an unprimeable number, because it can be changed into a prime (27337) 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, 173 + ... + 290.

It is an arithmetic number, because the mean of its divisors is an integer number (6960).

2²⁷³¹⁷ is an apocalyptic number.

It is an amenable number.

27317 is a deficient number, since it is larger than the sum of its proper divisors (523).

27317 is an equidigital number, since it uses as much as digits as its factorization.

27317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522.

The product of its digits is 294, while the sum is 20.

The square root of 27317 is about 165.2785527526. The cubic root of 27317 is about 30.1169508979.

Adding to 27317 its reverse (71372), we get a palindrome (98689).

The spelling of 27317 in words is "twenty-seven thousand, three hundred seventeen", and thus it is an iban number.