27420179 has 2 divisors, whose sum is σ = 27420180. Its totient is φ = 27420178.

The previous prime is 27420157. The next prime is 27420181. The reversal of 27420179 is 97102472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27420179 - 2²⁴ = 10642963 is a prime.

Together with 27420181, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1707575 and since 27420179 and 1707575 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (27420079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13710089 + 13710090.

It is an arithmetic number, because the mean of its divisors is an integer number (13710090).

Almost surely, 2^27420179 is an apocalyptic number.

27420179 is a deficient number, since it is larger than the sum of its proper divisors (1).

27420179 is an equidigital number, since it uses as much as digits as its factorization.

27420179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 27420179 is about 5236.4280764659. The cubic root of 27420179 is about 301.5482148763.

The spelling of 27420179 in words is "twenty-seven million, four hundred twenty thousand, one hundred seventy-nine".