91422911 has 2 divisors, whose sum is σ = 91422912. Its totient is φ = 91422910.

The previous prime is 91422871. The next prime is 91422913. The reversal of 91422911 is 11922419.

It is a strong prime.

It is an emirp because it is prime and its reverse (11922419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91422911 - 2¹⁴ = 91406527 is a prime.

Together with 91422913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91422913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45711455 + 45711456.

It is an arithmetic number, because the mean of its divisors is an integer number (45711456).

Almost surely, 2^91422911 is an apocalyptic number.

91422911 is a deficient number, since it is larger than the sum of its proper divisors (1).

91422911 is an equidigital number, since it uses as much as digits as its factorization.

91422911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 29.

The square root of 91422911 is about 9561.5328791988. The cubic root of 91422911 is about 450.4898550440.

The spelling of 91422911 in words is "ninety-one million, four hundred twenty-two thousand, nine hundred eleven".