91834980 has 48 divisors (see below), whose sum is σ = 270674880. Its totient is φ = 23200128.

The previous prime is 91834943. The next prime is 91834991. The reversal of 91834980 is 8943819.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39139 + ... + 41418.

It is an arithmetic number, because the mean of its divisors is an integer number (5639060).

Almost surely, 2^91834980 is an apocalyptic number.

It is an amenable number.

91834980 is an abundant number, since it is smaller than the sum of its proper divisors (178839900).

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

91834980 is a wasteful number, since it uses less digits than its factorization.

91834980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80588 (or 80586 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 91834980 is about 9583.0569235500. The cubic root of 91834980 is about 451.1656692291.

The spelling of 91834980 in words is "ninety-one million, eight hundred thirty-four thousand, nine hundred eighty".