91116323 has 2 divisors, whose sum is σ = 91116324. Its totient is φ = 91116322.

The previous prime is 91116299. The next prime is 91116353. The reversal of 91116323 is 32361119.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91116323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91116292 and 91116301.

It is not a weakly prime, because it can be changed into another prime (91116353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45558161 + 45558162.

It is an arithmetic number, because the mean of its divisors is an integer number (45558162).

Almost surely, 2^91116323 is an apocalyptic number.

91116323 is a deficient number, since it is larger than the sum of its proper divisors (1).

91116323 is an equidigital number, since it uses as much as digits as its factorization.

91116323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 26.

The square root of 91116323 is about 9545.4870488624. The cubic root of 91116323 is about 449.9857164191.

The spelling of 91116323 in words is "ninety-one million, one hundred sixteen thousand, three hundred twenty-three".