27215 has 4 divisors (see below), whose sum is σ = 32664. Its totient is φ = 21768.

The previous prime is 27211. The next prime is 27239. The reversal of 27215 is 51272.

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 27215 - 2² = 27211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 27193 and 27202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27211) 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, 2717 + ... + 2726.

It is an arithmetic number, because the mean of its divisors is an integer number (8166).

2²⁷²¹⁵ is an apocalyptic number.

27215 is a deficient number, since it is larger than the sum of its proper divisors (5449).

27215 is an equidigital number, since it uses as much as digits as its factorization.

27215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448.

The product of its digits is 140, while the sum is 17.

The square root of 27215 is about 164.9696941865. The cubic root of 27215 is about 30.0794191971.

Adding to 27215 its reverse (51272), we get a palindrome (78487).

It can be divided in two parts, 27 and 215, that added together give a palindrome (242).

The spelling of 27215 in words is "twenty-seven thousand, two hundred fifteen".