91936361 has 16 divisors (see below), whose sum is σ = 102610368. Its totient is φ = 81672000.

The previous prime is 91936349. The next prime is 91936363. The reversal of 91936361 is 16363919.

It is not a de Polignac number, because 91936361 - 2¹⁴ = 91919977 is a prime.

It is a super-4 number, since 4×91936361⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91936363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91715 + ... + 92711.

It is an arithmetic number, because the mean of its divisors is an integer number (6413148).

Almost surely, 2^91936361 is an apocalyptic number.

It is an amenable number.

91936361 is a deficient number, since it is larger than the sum of its proper divisors (10674007).

91936361 is a wasteful number, since it uses less digits than its factorization.

91936361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its digits is 26244, while the sum is 38.

The square root of 91936361 is about 9588.3450605409. The cubic root of 91936361 is about 451.3316292502.

The spelling of 91936361 in words is "ninety-one million, nine hundred thirty-six thousand, three hundred sixty-one".