320339 has 2 divisors, whose sum is σ = 320340. Its totient is φ = 320338.

The previous prime is 320329. The next prime is 320377. The reversal of 320339 is 933023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320339 - 2⁸ = 320083 is a prime.

It is a Chen prime.

It is equal to p₂₇₆₄₁ and since 320339 and 27641 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320339.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320339.

It is not a weakly prime, because it can be changed into another prime (320329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160169 + 160170.

It is an arithmetic number, because the mean of its divisors is an integer number (160170).

2³²⁰³³⁹ is an apocalyptic number.

320339 is a deficient number, since it is larger than the sum of its proper divisors (1).

320339 is an equidigital number, since it uses as much as digits as its factorization.

320339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 320339 is about 565.9849821329. The cubic root of 320339 is about 68.4231827532.

The spelling of 320339 in words is "three hundred twenty thousand, three hundred thirty-nine".