27338681 has 2 divisors, whose sum is σ = 27338682. Its totient is φ = 27338680.

The previous prime is 27338639. The next prime is 27338693. The reversal of 27338681 is 18683372.

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., 22090000 + 5248681 = 4700^2 + 2291^2 .

It is a cyclic number.

It is not a de Polignac number, because 27338681 - 2¹⁴ = 27322297 is a prime.

It is a super-2 number, since 2×27338681² = 1494806957639522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27338081) 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, 13669340 + 13669341.

It is an arithmetic number, because the mean of its divisors is an integer number (13669341).

Almost surely, 2^27338681 is an apocalyptic number.

It is an amenable number.

27338681 is a deficient number, since it is larger than the sum of its proper divisors (1).

27338681 is an equidigital number, since it uses as much as digits as its factorization.

27338681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 27338681 is about 5228.6404542672. The cubic root of 27338681 is about 301.2491654735.

The spelling of 27338681 in words is "twenty-seven million, three hundred thirty-eight thousand, six hundred eighty-one".