27272891 has 2 divisors, whose sum is σ = 27272892. Its totient is φ = 27272890.

The previous prime is 27272867. The next prime is 27272897. The reversal of 27272891 is 19827272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27272891 - 2⁶ = 27272827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27272897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13636445 + 13636446.

It is an arithmetic number, because the mean of its divisors is an integer number (13636446).

Almost surely, 2^27272891 is an apocalyptic number.

27272891 is a deficient number, since it is larger than the sum of its proper divisors (1).

27272891 is an equidigital number, since it uses as much as digits as its factorization.

27272891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 27272891 is about 5222.3453543403. The cubic root of 27272891 is about 301.0073213011.

The spelling of 27272891 in words is "twenty-seven million, two hundred seventy-two thousand, eight hundred ninety-one".