27108979 has 2 divisors, whose sum is σ = 27108980. Its totient is φ = 27108978.

The previous prime is 27108941. The next prime is 27109001. The reversal of 27108979 is 97980172.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27108979 - 2¹¹ = 27106931 is a prime.

It is not a weakly prime, because it can be changed into another prime (27108479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13554489 + 13554490.

It is an arithmetic number, because the mean of its divisors is an integer number (13554490).

Almost surely, 2^27108979 is an apocalyptic number.

27108979 is a deficient number, since it is larger than the sum of its proper divisors (1).

27108979 is an equidigital number, since it uses as much as digits as its factorization.

27108979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 27108979 is about 5206.6283716048. The cubic root of 27108979 is about 300.4030840941.

The spelling of 27108979 in words is "twenty-seven million, one hundred eight thousand, nine hundred seventy-nine".