27130637 has 2 divisors, whose sum is σ = 27130638. Its totient is φ = 27130636.

The previous prime is 27130601. The next prime is 27130661. The reversal of 27130637 is 73603172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21659716 + 5470921 = 4654^2 + 2339^2 .

It is a cyclic number.

It is not a de Polignac number, because 27130637 - 2⁸ = 27130381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27130837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13565318 + 13565319.

It is an arithmetic number, because the mean of its divisors is an integer number (13565319).

Almost surely, 2^27130637 is an apocalyptic number.

It is an amenable number.

27130637 is a deficient number, since it is larger than the sum of its proper divisors (1).

27130637 is an equidigital number, since it uses as much as digits as its factorization.

27130637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 27130637 is about 5208.7078052047. The cubic root of 27130637 is about 300.4830624920.

The spelling of 27130637 in words is "twenty-seven million, one hundred thirty thousand, six hundred thirty-seven".