27116729 has 2 divisors, whose sum is σ = 27116730. Its totient is φ = 27116728.

The previous prime is 27116699. The next prime is 27116737. The reversal of 27116729 is 92761172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 76729 = 5200^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 27116729 - 2²⁰ = 26068153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27116759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13558364 + 13558365.

It is an arithmetic number, because the mean of its divisors is an integer number (13558365).

Almost surely, 2^27116729 is an apocalyptic number.

It is an amenable number.

27116729 is a deficient number, since it is larger than the sum of its proper divisors (1).

27116729 is an equidigital number, since it uses as much as digits as its factorization.

27116729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 35.

The square root of 27116729 is about 5207.3725620508. The cubic root of 27116729 is about 300.4317080920.

The spelling of 27116729 in words is "twenty-seven million, one hundred sixteen thousand, seven hundred twenty-nine".