93872131 has 4 divisors (see below), whose sum is σ = 97953552. Its totient is φ = 89790712.

The previous prime is 93872117. The next prime is 93872161. The reversal of 93872131 is 13127839.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 93872131 - 2⁵ = 93872099 is a prime.

It is a super-2 number, since 2×93872131² = 17623953956962322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93872161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040676 + ... + 2040721.

It is an arithmetic number, because the mean of its divisors is an integer number (24488388).

Almost surely, 2^93872131 is an apocalyptic number.

93872131 is a deficient number, since it is larger than the sum of its proper divisors (4081421).

93872131 is a wasteful number, since it uses less digits than its factorization.

93872131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081420.

The product of its digits is 9072, while the sum is 34.

The square root of 93872131 is about 9688.7631305549. The cubic root of 93872131 is about 454.4773308343.

The spelling of 93872131 in words is "ninety-three million, eight hundred seventy-two thousand, one hundred thirty-one".