27489079 has 2 divisors, whose sum is σ = 27489080. Its totient is φ = 27489078.

The previous prime is 27489073. The next prime is 27489109. The reversal of 27489079 is 97098472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27489079 - 2⁵ = 27489047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27489073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13744539 + 13744540.

It is an arithmetic number, because the mean of its divisors is an integer number (13744540).

Almost surely, 2^27489079 is an apocalyptic number.

27489079 is a deficient number, since it is larger than the sum of its proper divisors (1).

27489079 is an equidigital number, since it uses as much as digits as its factorization.

27489079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 27489079 is about 5243.0028609567. The cubic root of 27489079 is about 301.8005751797.

The spelling of 27489079 in words is "twenty-seven million, four hundred eighty-nine thousand, seventy-nine".