91873083 has 8 divisors (see below), whose sum is σ = 129703248. Its totient is φ = 57645824.

The previous prime is 91873043. The next prime is 91873097. The reversal of 91873083 is 38037819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91873083 - 2²⁰ = 90824507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91873043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900666 + ... + 900767.

It is an arithmetic number, because the mean of its divisors is an integer number (16212906).

Almost surely, 2^91873083 is an apocalyptic number.

91873083 is a deficient number, since it is larger than the sum of its proper divisors (37830165).

91873083 is a wasteful number, since it uses less digits than its factorization.

91873083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801453.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 91873083 is about 9585.0447573290. The cubic root of 91873083 is about 451.2280579054.

The spelling of 91873083 in words is "ninety-one million, eight hundred seventy-three thousand, eighty-three".