683139617 has 2 divisors, whose sum is σ = 683139618. Its totient is φ = 683139616.

The previous prime is 683139599. The next prime is 683139619. The reversal of 683139617 is 716931386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 603144481 + 79995136 = 24559^2 + 8944^2 .

It is a cyclic number.

It is not a de Polignac number, because 683139617 - 2⁸ = 683139361 is a prime.

Together with 683139619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (683139619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341569808 + 341569809.

It is an arithmetic number, because the mean of its divisors is an integer number (341569809).

Almost surely, 2^683139617 is an apocalyptic number.

It is an amenable number.

683139617 is a deficient number, since it is larger than the sum of its proper divisors (1).

683139617 is an equidigital number, since it uses as much as digits as its factorization.

683139617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 683139617 is about 26136.9397022681. The cubic root of 683139617 is about 880.7172256292.

The spelling of 683139617 in words is "six hundred eighty-three million, one hundred thirty-nine thousand, six hundred seventeen".