27089129 has 2 divisors, whose sum is σ = 27089130. Its totient is φ = 27089128.

The previous prime is 27089113. The next prime is 27089131. The reversal of 27089129 is 92198072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 5513104 = 4645^2 + 2348^2 .

It is a cyclic number.

It is not a de Polignac number, because 27089129 - 2⁴ = 27089113 is a prime.

Together with 27089131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27089092 and 27089101.

It is not a weakly prime, because it can be changed into another prime (27089149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13544564 + 13544565.

It is an arithmetic number, because the mean of its divisors is an integer number (13544565).

Almost surely, 2^27089129 is an apocalyptic number.

It is an amenable number.

27089129 is a deficient number, since it is larger than the sum of its proper divisors (1).

27089129 is an equidigital number, since it uses as much as digits as its factorization.

27089129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 27089129 is about 5204.7217985210. The cubic root of 27089129 is about 300.3297448358.

The spelling of 27089129 in words is "twenty-seven million, eighty-nine thousand, one hundred twenty-nine".