91453793 has 2 divisors, whose sum is σ = 91453794. Its totient is φ = 91453792.

The previous prime is 91453787. The next prime is 91453801. The reversal of 91453793 is 39735419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78978769 + 12475024 = 8887^2 + 3532^2 .

It is a cyclic number.

It is not a de Polignac number, because 91453793 - 2⁴ = 91453777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91453793.

It is not a weakly prime, because it can be changed into another prime (91453723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45726896 + 45726897.

It is an arithmetic number, because the mean of its divisors is an integer number (45726897).

Almost surely, 2^91453793 is an apocalyptic number.

It is an amenable number.

91453793 is a deficient number, since it is larger than the sum of its proper divisors (1).

91453793 is an equidigital number, since it uses as much as digits as its factorization.

91453793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 41.

The square root of 91453793 is about 9563.1476512705. The cubic root of 91453793 is about 450.5405734083.

The spelling of 91453793 in words is "ninety-one million, four hundred fifty-three thousand, seven hundred ninety-three".