320002713 has 12 divisors (see below), whose sum is σ = 489416148. Its totient is φ = 200785920.

The previous prime is 320002691. The next prime is 320002717. The reversal of 320002713 is 317200023.

It can be written as a sum of positive squares in 2 ways, for example, as 119836809 + 200165904 = 10947^2 + 14148^2 .

It is not a de Polignac number, because 320002713 - 2⁹ = 320002201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320002717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1045608 + ... + 1045913.

It is an arithmetic number, because the mean of its divisors is an integer number (40784679).

Almost surely, 2^320002713 is an apocalyptic number.

It is an amenable number.

320002713 is a deficient number, since it is larger than the sum of its proper divisors (169413435).

320002713 is a wasteful number, since it uses less digits than its factorization.

320002713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091544 (or 2091541 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 320002713 is about 17888.6196504929. The cubic root of 320002713 is about 683.9923116505.

Adding to 320002713 its reverse (317200023), we get a palindrome (637202736).

The spelling of 320002713 in words is "three hundred twenty million, two thousand, seven hundred thirteen".