91318104 has 80 divisors (see below), whose sum is σ = 269273400. Its totient is φ = 28833408.

The previous prime is 91318091. The next prime is 91318121. The reversal of 91318104 is 40181319.

It is a super-2 number, since 2×91318104² = 16677992236309632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8604 + ... + 16020.

Almost surely, 2^91318104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91318104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134636700).

91318104 is an abundant number, since it is smaller than the sum of its proper divisors (177955296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91318104 is a wasteful number, since it uses less digits than its factorization.

91318104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454 (or 7441 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 91318104 is about 9556.0506486728. The cubic root of 91318104 is about 450.3176423990.

The spelling of 91318104 in words is "ninety-one million, three hundred eighteen thousand, one hundred four".