27224 has 16 divisors (see below), whose sum is σ = 52920. Its totient is φ = 13120.

The previous prime is 27211. The next prime is 27239. The reversal of 27224 is 42272.

27224 is nontrivially palindromic in base 7.

It is a Cunningham number, because it is equal to 165²-1.

It is a super-2 number, since 2×27224² = 1482292352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287 + ... + 369.

2²⁷²²⁴ is an apocalyptic number.

It is an amenable number.

27224 is a deficient number, since it is larger than the sum of its proper divisors (25696).

27224 is a wasteful number, since it uses less digits than its factorization.

27224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 126 counting only the distinct ones).

The product of its digits is 224, while the sum is 17.

The square root of 27224 is about 164.9969696691. The cubic root of 27224 is about 30.0827345862.

Subtracting from 27224 its product of digits (224), we obtain a cube (27000 = 30³).

Adding to 27224 its reverse (42272), we get a palindrome (69496).

The spelling of 27224 in words is "twenty-seven thousand, two hundred twenty-four", and thus it is an iban number.