91127027 has 2 divisors, whose sum is σ = 91127028. Its totient is φ = 91127026.

The previous prime is 91127017. The next prime is 91127063. The reversal of 91127027 is 72072119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91127027 - 2⁶ = 91126963 is a prime.

It is not a weakly prime, because it can be changed into another prime (91127017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45563513 + 45563514.

It is an arithmetic number, because the mean of its divisors is an integer number (45563514).

Almost surely, 2^91127027 is an apocalyptic number.

91127027 is a deficient number, since it is larger than the sum of its proper divisors (1).

91127027 is an equidigital number, since it uses as much as digits as its factorization.

91127027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 91127027 is about 9546.0477162017. The cubic root of 91127027 is about 450.0033366008.

The spelling of 91127027 in words is "ninety-one million, one hundred twenty-seven thousand, twenty-seven".