91964359 has 2 divisors, whose sum is σ = 91964360. Its totient is φ = 91964358.

The previous prime is 91964347. The next prime is 91964377. The reversal of 91964359 is 95346919.

It is a weak prime.

It is an emirp because it is prime and its reverse (95346919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91964359 - 2⁷ = 91964231 is a prime.

It is a super-3 number, since 3×91964359³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91964309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45982179 + 45982180.

It is an arithmetic number, because the mean of its divisors is an integer number (45982180).

Almost surely, 2^91964359 is an apocalyptic number.

91964359 is a deficient number, since it is larger than the sum of its proper divisors (1).

91964359 is an equidigital number, since it uses as much as digits as its factorization.

91964359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 46.

The square root of 91964359 is about 9589.8049510926. The cubic root of 91964359 is about 451.3774402883.

The spelling of 91964359 in words is "ninety-one million, nine hundred sixty-four thousand, three hundred fifty-nine".