27010681 has 2 divisors, whose sum is σ = 27010682. Its totient is φ = 27010680.

The previous prime is 27010679. The next prime is 27010691. The reversal of 27010681 is 18601072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26173456 + 837225 = 5116^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 27010681 - 2¹ = 27010679 is a prime.

It is a super-2 number, since 2×27010681² = 1459153776167522, which contains 22 as substring.

Together with 27010679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27010631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13505340 + 13505341.

It is an arithmetic number, because the mean of its divisors is an integer number (13505341).

Almost surely, 2^27010681 is an apocalyptic number.

It is an amenable number.

27010681 is a deficient number, since it is larger than the sum of its proper divisors (1).

27010681 is an equidigital number, since it uses as much as digits as its factorization.

27010681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 27010681 is about 5197.1801007854. The cubic root of 27010681 is about 300.0395540440.

The spelling of 27010681 in words is "twenty-seven million, ten thousand, six hundred eighty-one".