91389096 has 48 divisors (see below), whose sum is σ = 250660800. Its totient is φ = 30075552.

The previous prime is 91389083. The next prime is 91389169. The reversal of 91389096 is 69098319.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2346 + ... + 13721.

It is an arithmetic number, because the mean of its divisors is an integer number (5222100).

Almost surely, 2^91389096 is an apocalyptic number.

It is an amenable number.

91389096 is an abundant number, since it is smaller than the sum of its proper divisors (159271704).

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

91389096 is a wasteful number, since it uses less digits than its factorization.

91389096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16158 (or 16151 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 91389096 is about 9559.7644322441. The cubic root of 91389096 is about 450.4343066305.

It can be divided in two parts, 913 and 89096, that added together give a palindrome (90009).

The spelling of 91389096 in words is "ninety-one million, three hundred eighty-nine thousand, ninety-six".