27044009 has 2 divisors, whose sum is σ = 27044010. Its totient is φ = 27044008.

The previous prime is 27043999. The next prime is 27044023. The reversal of 27044009 is 90044072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21187609 + 5856400 = 4603^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 27044009 - 2⁴ = 27043993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27044209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13522004 + 13522005.

It is an arithmetic number, because the mean of its divisors is an integer number (13522005).

Almost surely, 2^27044009 is an apocalyptic number.

It is an amenable number.

27044009 is a deficient number, since it is larger than the sum of its proper divisors (1).

27044009 is an equidigital number, since it uses as much as digits as its factorization.

27044009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 27044009 is about 5200.3854664823. The cubic root of 27044009 is about 300.1629078171.

The spelling of 27044009 in words is "twenty-seven million, forty-four thousand, nine".