91791882 has 48 divisors (see below), whose sum is σ = 244782720. Its totient is φ = 24208416.

The previous prime is 91791877. The next prime is 91791901. The reversal of 91791882 is 28819719.

It is a super-3 number, since 3×91791882³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26382 + ... + 29657.

It is an arithmetic number, because the mean of its divisors is an integer number (5099640).

Almost surely, 2^91791882 is an apocalyptic number.

91791882 is an abundant number, since it is smaller than the sum of its proper divisors (152990838).

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

91791882 is a wasteful number, since it uses less digits than its factorization.

91791882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56067 (or 56064 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 91791882 is about 9580.8080035037. The cubic root of 91791882 is about 451.0950810918.

The spelling of 91791882 in words is "ninety-one million, seven hundred ninety-one thousand, eight hundred eighty-two".