831390106 has 16 divisors (see below), whose sum is σ = 1334244960. Its totient is φ = 387359280.

The previous prime is 831390073. The next prime is 831390127. The reversal of 831390106 is 601093138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177016 + ... + 181651.

It is an arithmetic number, because the mean of its divisors is an integer number (83390310).

Almost surely, 2^831390106 is an apocalyptic number.

831390106 is a deficient number, since it is larger than the sum of its proper divisors (502854854).

831390106 is a wasteful number, since it uses less digits than its factorization.

831390106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358749.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 831390106 is about 28833.8361304909. The cubic root of 831390106 is about 940.3040008139.

The spelling of 831390106 in words is "eight hundred thirty-one million, three hundred ninety thousand, one hundred six".