91873068 has 48 divisors (see below), whose sum is σ = 247188480. Its totient is φ = 26014464.

The previous prime is 91873043. The next prime is 91873097. The reversal of 91873068 is 86037819.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4653 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (5149760).

Almost surely, 2^91873068 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 91873068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123594240).

91873068 is an abundant number, since it is smaller than the sum of its proper divisors (155315412).

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

91873068 is a wasteful number, since it uses less digits than its factorization.

91873068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806 (or 9804 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 91873068 is about 9585.0439748600. The cubic root of 91873068 is about 451.2280333483.

The spelling of 91873068 in words is "ninety-one million, eight hundred seventy-three thousand, sixty-eight".