683727232727309 has 2 divisors, whose sum is σ = 683727232727310. Its totient is φ = 683727232727308.

The previous prime is 683727232727263. The next prime is 683727232727423. The reversal of 683727232727309 is 903727232727386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 454423143743209 + 229304088984100 = 21317203^2 + 15142790^2 .

It is a cyclic number.

It is not a de Polignac number, because 683727232727309 - 2²⁸ = 683726964291853 is a prime.

It is a super-3 number, since 3×683727232727309³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683727232724309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341863616363654 + 341863616363655.

It is an arithmetic number, because the mean of its divisors is an integer number (341863616363655).

Almost surely, 2^{683727232727309} is an apocalyptic number.

It is an amenable number.

683727232727309 is a deficient number, since it is larger than the sum of its proper divisors (1).

683727232727309 is an equidigital number, since it uses as much as digits as its factorization.

683727232727309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448084224, while the sum is 68.

The spelling of 683727232727309 in words is "six hundred eighty-three trillion, seven hundred twenty-seven billion, two hundred thirty-two million, seven hundred twenty-seven thousand, three hundred nine".