27974227 has 2 divisors, whose sum is σ = 27974228. Its totient is φ = 27974226.

The previous prime is 27974207. The next prime is 27974239. The reversal of 27974227 is 72247972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27974227 - 2¹¹ = 27972179 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27974227.

It is not a weakly prime, because it can be changed into another prime (27974207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13987113 + 13987114.

It is an arithmetic number, because the mean of its divisors is an integer number (13987114).

Almost surely, 2^27974227 is an apocalyptic number.

27974227 is a deficient number, since it is larger than the sum of its proper divisors (1).

27974227 is an equidigital number, since it uses as much as digits as its factorization.

27974227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 40.

The square root of 27974227 is about 5289.0667418742. The cubic root of 27974227 is about 303.5656995300.

The spelling of 27974227 in words is "twenty-seven million, nine hundred seventy-four thousand, two hundred twenty-seven".