91790683 has 2 divisors, whose sum is σ = 91790684. Its totient is φ = 91790682.

The previous prime is 91790669. The next prime is 91790687. The reversal of 91790683 is 38609719.

It is a strong prime.

It is an emirp because it is prime and its reverse (38609719) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91790683 - 2²⁵ = 58236251 is a prime.

It is not a weakly prime, because it can be changed into another prime (91790687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45895341 + 45895342.

It is an arithmetic number, because the mean of its divisors is an integer number (45895342).

Almost surely, 2^91790683 is an apocalyptic number.

91790683 is a deficient number, since it is larger than the sum of its proper divisors (1).

91790683 is an equidigital number, since it uses as much as digits as its factorization.

91790683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 91790683 is about 9580.7454302888. The cubic root of 91790683 is about 451.0931169916.

The spelling of 91790683 in words is "ninety-one million, seven hundred ninety thousand, six hundred eighty-three".