27227971 has 2 divisors, whose sum is σ = 27227972. Its totient is φ = 27227970.

The previous prime is 27227927. The next prime is 27228001. The reversal of 27227971 is 17972272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27227971 - 2⁷ = 27227843 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 27227971.

It is not a weakly prime, because it can be changed into another prime (27237971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13613985 + 13613986.

It is an arithmetic number, because the mean of its divisors is an integer number (13613986).

Almost surely, 2^27227971 is an apocalyptic number.

27227971 is a deficient number, since it is larger than the sum of its proper divisors (1).

27227971 is an equidigital number, since it uses as much as digits as its factorization.

27227971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 37.

The square root of 27227971 is about 5218.0428323271. The cubic root of 27227971 is about 300.8419717715.

The spelling of 27227971 in words is "twenty-seven million, two hundred twenty-seven thousand, nine hundred seventy-one".