308713 has 2 divisors, whose sum is σ = 308714. Its totient is φ = 308712.

The previous prime is 308701. The next prime is 308723. The reversal of 308713 is 317803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278784 + 29929 = 528^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 308713 - 2⁵ = 308681 is a prime.

It is not a weakly prime, because it can be changed into another prime (308723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154356 + 154357.

It is an arithmetic number, because the mean of its divisors is an integer number (154357).

2³⁰⁸⁷¹³ is an apocalyptic number.

It is an amenable number.

308713 is a deficient number, since it is larger than the sum of its proper divisors (1).

308713 is an equidigital number, since it uses as much as digits as its factorization.

308713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 308713 is about 555.6194741008. The cubic root of 308713 is about 67.5852056137.

The spelling of 308713 in words is "three hundred eight thousand, seven hundred thirteen".