8312939 has 4 divisors (see below), whose sum is σ = 8359560. Its totient is φ = 8266320.

The previous prime is 8312921. The next prime is 8312947. The reversal of 8312939 is 9392138.

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

It is a cyclic number.

It is not a de Polignac number, because 8312939 - 2²⁰ = 7264363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8312899 and 8312908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8312989) 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, 23042 + ... + 23399.

It is an arithmetic number, because the mean of its divisors is an integer number (2089890).

Almost surely, 2^8312939 is an apocalyptic number.

8312939 is a deficient number, since it is larger than the sum of its proper divisors (46621).

8312939 is a wasteful number, since it uses less digits than its factorization.

8312939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46620.

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

The square root of 8312939 is about 2883.2167799179. The cubic root of 8312939 is about 202.5745414748.

The spelling of 8312939 in words is "eight million, three hundred twelve thousand, nine hundred thirty-nine".