27356081 has 2 divisors, whose sum is σ = 27356082. Its totient is φ = 27356080.

The previous prime is 27356059. The next prime is 27356083. The reversal of 27356081 is 18065372.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26946481 + 409600 = 5191^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27356081 is a prime.

It is a super-2 number, since 2×27356081² = 1496710335357122, which contains 22 as substring.

Together with 27356083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27356083) 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, 13678040 + 13678041.

It is an arithmetic number, because the mean of its divisors is an integer number (13678041).

Almost surely, 2^27356081 is an apocalyptic number.

It is an amenable number.

27356081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27356081 is an equidigital number, since it uses as much as digits as its factorization.

27356081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 27356081 is about 5230.3041020575. The cubic root of 27356081 is about 301.3130630187.

The spelling of 27356081 in words is "twenty-seven million, three hundred fifty-six thousand, eighty-one".