27224189 has 2 divisors, whose sum is σ = 27224190. Its totient is φ = 27224188.

The previous prime is 27224179. The next prime is 27224209. The reversal of 27224189 is 98142272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27144100 + 80089 = 5210^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 27224189 - 2¹² = 27220093 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27224129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13612094 + 13612095.

It is an arithmetic number, because the mean of its divisors is an integer number (13612095).

Almost surely, 2^27224189 is an apocalyptic number.

It is an amenable number.

27224189 is a deficient number, since it is larger than the sum of its proper divisors (1).

27224189 is an equidigital number, since it uses as much as digits as its factorization.

27224189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 27224189 is about 5217.6804233299. The cubic root of 27224189 is about 300.8280420149.

The spelling of 27224189 in words is "twenty-seven million, two hundred twenty-four thousand, one hundred eighty-nine".