91472167 has 2 divisors, whose sum is σ = 91472168. Its totient is φ = 91472166.

The previous prime is 91472149. The next prime is 91472179. The reversal of 91472167 is 76127419.

It is a strong prime.

It is an emirp because it is prime and its reverse (76127419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91472167 - 2⁷ = 91472039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91472197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45736083 + 45736084.

It is an arithmetic number, because the mean of its divisors is an integer number (45736084).

Almost surely, 2^91472167 is an apocalyptic number.

91472167 is a deficient number, since it is larger than the sum of its proper divisors (1).

91472167 is an equidigital number, since it uses as much as digits as its factorization.

91472167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 91472167 is about 9564.1082699852. The cubic root of 91472167 is about 450.5707441204.

The spelling of 91472167 in words is "ninety-one million, four hundred seventy-two thousand, one hundred sixty-seven".