713666309 has 2 divisors, whose sum is σ = 713666310. Its totient is φ = 713666308.

The previous prime is 713666299. The next prime is 713666339. The reversal of 713666309 is 903666317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668481025 + 45185284 = 25855^2 + 6722^2 .

It is an emirp because it is prime and its reverse (903666317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 713666309 - 2⁴ = 713666293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (713666339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356833154 + 356833155.

It is an arithmetic number, because the mean of its divisors is an integer number (356833155).

Almost surely, 2^713666309 is an apocalyptic number.

It is an amenable number.

713666309 is a deficient number, since it is larger than the sum of its proper divisors (1).

713666309 is an equidigital number, since it uses as much as digits as its factorization.

713666309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 713666309 is about 26714.5336661526. The cubic root of 713666309 is about 893.6450723706.

The spelling of 713666309 in words is "seven hundred thirteen million, six hundred sixty-six thousand, three hundred nine".