872930091 has 16 divisors (see below), whose sum is σ = 1336544640. Its totient is φ = 501203520.

The previous prime is 872930041. The next prime is 872930099. The reversal of 872930091 is 190039278.

It is not a de Polignac number, because 872930091 - 2⁷ = 872929963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (872930099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695490 + ... + 696743.

It is an arithmetic number, because the mean of its divisors is an integer number (83534040).

Almost surely, 2^872930091 is an apocalyptic number.

872930091 is a deficient number, since it is larger than the sum of its proper divisors (463614549).

872930091 is a wasteful number, since it uses less digits than its factorization.

872930091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392266.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 872930091 is about 29545.3903511191. The cubic root of 872930091 is about 955.7107876021.

The spelling of 872930091 in words is "eight hundred seventy-two million, nine hundred thirty thousand, ninety-one".