27265891 has 2 divisors, whose sum is σ = 27265892. Its totient is φ = 27265890.

The previous prime is 27265873. The next prime is 27265897. The reversal of 27265891 is 19856272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27265891 - 2⁹ = 27265379 is a prime.

It is not a weakly prime, because it can be changed into another prime (27265897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13632945 + 13632946.

It is an arithmetic number, because the mean of its divisors is an integer number (13632946).

Almost surely, 2^27265891 is an apocalyptic number.

27265891 is a deficient number, since it is larger than the sum of its proper divisors (1).

27265891 is an equidigital number, since it uses as much as digits as its factorization.

27265891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 27265891 is about 5221.6751143670. The cubic root of 27265891 is about 300.9815664035.

The spelling of 27265891 in words is "twenty-seven million, two hundred sixty-five thousand, eight hundred ninety-one".