27313231 has 8 divisors (see below), whose sum is σ = 30086784. Its totient is φ = 24588120.

The previous prime is 27313229. The next prime is 27313243. The reversal of 27313231 is 13231372.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27313231 - 2¹ = 27313229 is a prime.

It is a super-2 number, since 2×27313231² = 1492025175318722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27313211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10921 + ... + 13186.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^27313231 is an apocalyptic number.

27313231 is a deficient number, since it is larger than the sum of its proper divisors (2773553).

27313231 is a wasteful number, since it uses less digits than its factorization.

27313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24221.

The product of its digits is 756, while the sum is 22.

The square root of 27313231 is about 5226.2061765682. The cubic root of 27313231 is about 301.1556572859.

The spelling of 27313231 in words is "twenty-seven million, three hundred thirteen thousand, two hundred thirty-one".