91692241 has 2 divisors, whose sum is σ = 91692242. Its totient is φ = 91692240.

The previous prime is 91692199. The next prime is 91692269. The reversal of 91692241 is 14229619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62489025 + 29203216 = 7905^2 + 5404^2 .

It is an emirp because it is prime and its reverse (14229619) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91692241 - 2⁹ = 91691729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91692197 and 91692206.

It is not a weakly prime, because it can be changed into another prime (91693241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45846120 + 45846121.

It is an arithmetic number, because the mean of its divisors is an integer number (45846121).

Almost surely, 2^91692241 is an apocalyptic number.

It is an amenable number.

91692241 is a deficient number, since it is larger than the sum of its proper divisors (1).

91692241 is an equidigital number, since it uses as much as digits as its factorization.

91692241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 91692241 is about 9575.6065604222. The cubic root of 91692241 is about 450.9317992653.

The spelling of 91692241 in words is "ninety-one million, six hundred ninety-two thousand, two hundred forty-one".