27310681 has 2 divisors, whose sum is σ = 27310682. Its totient is φ = 27310680.

The previous prime is 27310669. The next prime is 27310693. The reversal of 27310681 is 18601372.

It is a balanced prime because it is at equal distance from previous prime (27310669) and next prime (27310693).

It can be written as a sum of positive squares in only one way, i.e., 25918281 + 1392400 = 5091^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 27310681 - 2⁵ = 27310649 is a prime.

It is a super-2 number, since 2×27310681² = 1491746593367522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27310601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13655340 + 13655341.

It is an arithmetic number, because the mean of its divisors is an integer number (13655341).

Almost surely, 2^27310681 is an apocalyptic number.

It is an amenable number.

27310681 is a deficient number, since it is larger than the sum of its proper divisors (1).

27310681 is an equidigital number, since it uses as much as digits as its factorization.

27310681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 27310681 is about 5225.9622080532. The cubic root of 27310681 is about 301.1462848950.

The spelling of 27310681 in words is "twenty-seven million, three hundred ten thousand, six hundred eighty-one".