27688027 has 2 divisors, whose sum is σ = 27688028. Its totient is φ = 27688026.

The previous prime is 27688009. The next prime is 27688033. The reversal of 27688027 is 72088672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27688027 - 2¹⁵ = 27655259 is a prime.

It is not a weakly prime, because it can be changed into another prime (27688007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13844013 + 13844014.

It is an arithmetic number, because the mean of its divisors is an integer number (13844014).

Almost surely, 2^27688027 is an apocalyptic number.

27688027 is a deficient number, since it is larger than the sum of its proper divisors (1).

27688027 is an equidigital number, since it uses as much as digits as its factorization.

27688027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 27688027 is about 5261.9413717753. The cubic root of 27688027 is about 302.5269042391.

The spelling of 27688027 in words is "twenty-seven million, six hundred eighty-eight thousand, twenty-seven".