613935317 has 2 divisors, whose sum is σ = 613935318. Its totient is φ = 613935316.

The previous prime is 613935281. The next prime is 613935319. The reversal of 613935317 is 713539316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605209201 + 8726116 = 24601^2 + 2954^2 .

It is a cyclic number.

It is not a de Polignac number, because 613935317 - 2¹² = 613931221 is a prime.

Together with 613935319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613935319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306967658 + 306967659.

It is an arithmetic number, because the mean of its divisors is an integer number (306967659).

Almost surely, 2^613935317 is an apocalyptic number.

It is an amenable number.

613935317 is a deficient number, since it is larger than the sum of its proper divisors (1).

613935317 is an equidigital number, since it uses as much as digits as its factorization.

613935317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 38.

The square root of 613935317 is about 24777.7181556333. The cubic root of 613935317 is about 849.9124786472.

The spelling of 613935317 in words is "six hundred thirteen million, nine hundred thirty-five thousand, three hundred seventeen".