316243839 has 4 divisors (see below), whose sum is σ = 421658456. Its totient is φ = 210829224.

The previous prime is 316243831. The next prime is 316243841. The reversal of 316243839 is 938342613.

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

It is not a de Polignac number, because 316243839 - 2³ = 316243831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316243797 and 316243806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316243831) 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, 52707304 + ... + 52707309.

It is an arithmetic number, because the mean of its divisors is an integer number (105414614).

Almost surely, 2^316243839 is an apocalyptic number.

316243839 is a deficient number, since it is larger than the sum of its proper divisors (105414617).

316243839 is a wasteful number, since it uses less digits than its factorization.

316243839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105414616.

The product of its digits is 93312, while the sum is 39.

The square root of 316243839 is about 17783.2460197794. The cubic root of 316243839 is about 681.3036115932.

The spelling of 316243839 in words is "three hundred sixteen million, two hundred forty-three thousand, eight hundred thirty-nine".