27679231 has 2 divisors, whose sum is σ = 27679232. Its totient is φ = 27679230.

The previous prime is 27679207. The next prime is 27679243. The reversal of 27679231 is 13297672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27679231 - 2⁵ = 27679199 is a prime.

It is a super-2 number, since 2×27679231² = 1532279657502722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27679261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13839615 + 13839616.

It is an arithmetic number, because the mean of its divisors is an integer number (13839616).

Almost surely, 2^27679231 is an apocalyptic number.

27679231 is a deficient number, since it is larger than the sum of its proper divisors (1).

27679231 is an equidigital number, since it uses as much as digits as its factorization.

27679231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 27679231 is about 5261.1054921946. The cubic root of 27679231 is about 302.4948650177.

It can be divided in two parts, 276 and 79231, that added together give a cube (79507 = 43³).

The spelling of 27679231 in words is "twenty-seven million, six hundred seventy-nine thousand, two hundred thirty-one".