683811841 has 2 divisors, whose sum is σ = 683811842. Its totient is φ = 683811840.

The previous prime is 683811839. The next prime is 683811847. The reversal of 683811841 is 148118386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349690000 + 334121841 = 18700^2 + 18279^2 .

It is a cyclic number.

It is not a de Polignac number, because 683811841 - 2¹ = 683811839 is a prime.

Together with 683811839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 683811794 and 683811803.

It is not a weakly prime, because it can be changed into another prime (683811847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341905920 + 341905921.

It is an arithmetic number, because the mean of its divisors is an integer number (341905921).

Almost surely, 2^683811841 is an apocalyptic number.

It is an amenable number.

683811841 is a deficient number, since it is larger than the sum of its proper divisors (1).

683811841 is an equidigital number, since it uses as much as digits as its factorization.

683811841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 683811841 is about 26149.7961942345. The cubic root of 683811841 is about 881.0060124572.

The spelling of 683811841 in words is "six hundred eighty-three million, eight hundred eleven thousand, eight hundred forty-one".