8231891234 has 16 divisors (see below), whose sum is σ = 14412066048. Its totient is φ = 3452890272.

The previous prime is 8231891183. The next prime is 8231891273. The reversal of 8231891234 is 4321981328.

It is a junction number, because it is equal to n+sod(n) for n = 8231891191 and 8231891200.

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, 6254579 + ... + 6255894.

It is an arithmetic number, because the mean of its divisors is an integer number (900754128).

Almost surely, 2^8231891234 is an apocalyptic number.

8231891234 is a deficient number, since it is larger than the sum of its proper divisors (6180174814).

8231891234 is a wasteful number, since it uses less digits than its factorization.

8231891234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12510529.

The product of its digits is 82944, while the sum is 41.

The square root of 8231891234 is about 90729.7703843672. The cubic root of 8231891234 is about 2019.1405056635.

The spelling of 8231891234 in words is "eight billion, two hundred thirty-one million, eight hundred ninety-one thousand, two hundred thirty-four".