91942873 has 8 divisors (see below), whose sum is σ = 100563840. Its totient is φ = 83365680.

The previous prime is 91942859. The next prime is 91942883. The reversal of 91942873 is 37824919.

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 91942873 - 2⁵ = 91942841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91942883) 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, 6465 + ... + 15022.

It is an arithmetic number, because the mean of its divisors is an integer number (12570480).

Almost surely, 2^91942873 is an apocalyptic number.

It is an amenable number.

91942873 is a deficient number, since it is larger than the sum of its proper divisors (8620967).

91942873 is a wasteful number, since it uses less digits than its factorization.

91942873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21887.

The product of its digits is 108864, while the sum is 43.

The square root of 91942873 is about 9588.6846334625. The cubic root of 91942873 is about 451.3422851798.

The spelling of 91942873 in words is "ninety-one million, nine hundred forty-two thousand, eight hundred seventy-three".