8231993 has 12 divisors (see below), whose sum is σ = 10342080. Its totient is φ = 6413880.

The previous prime is 8231947. The next prime is 8232001. The reversal of 8231993 is 3991328.

It is not a de Polignac number, because 8231993 - 2⁶ = 8231929 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8231933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4013 + ... + 5706.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^8231993 is an apocalyptic number.

It is an amenable number.

8231993 is a deficient number, since it is larger than the sum of its proper divisors (2110087).

8231993 is a wasteful number, since it uses less digits than its factorization.

8231993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9748 (or 9737 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The square root of 8231993 is about 2869.1449945933. The cubic root of 8231993 is about 201.9148826109.

The spelling of 8231993 in words is "eight million, two hundred thirty-one thousand, nine hundred ninety-three".