27026009 has 2 divisors, whose sum is σ = 27026010. Its totient is φ = 27026008.

The previous prime is 27025997. The next prime is 27026023. The reversal of 27026009 is 90062072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26265625 + 760384 = 5125^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 27026009 - 2²⁰ = 25977433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27026089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13513004 + 13513005.

It is an arithmetic number, because the mean of its divisors is an integer number (13513005).

Almost surely, 2^27026009 is an apocalyptic number.

It is an amenable number.

27026009 is a deficient number, since it is larger than the sum of its proper divisors (1).

27026009 is an equidigital number, since it uses as much as digits as its factorization.

27026009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 27026009 is about 5198.6545374741. The cubic root of 27026009 is about 300.0962987148.

The spelling of 27026009 in words is "twenty-seven million, twenty-six thousand, nine".