320713 has 2 divisors, whose sum is σ = 320714. Its totient is φ = 320712.

The previous prime is 320699. The next prime is 320741. The reversal of 320713 is 317023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182329 + 138384 = 427^2 + 372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320713 is a prime.

It is not a weakly prime, because it can be changed into another prime (320113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160356 + 160357.

It is an arithmetic number, because the mean of its divisors is an integer number (160357).

2³²⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

320713 is a deficient number, since it is larger than the sum of its proper divisors (1).

320713 is an equidigital number, since it uses as much as digits as its factorization.

320713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 320713 is about 566.3152832125. The cubic root of 320713 is about 68.4498007191.

Adding to 320713 its reverse (317023), we get a palindrome (637736).

The spelling of 320713 in words is "three hundred twenty thousand, seven hundred thirteen".