683320843 has 2 divisors, whose sum is σ = 683320844. Its totient is φ = 683320842.

The previous prime is 683320819. The next prime is 683320871. The reversal of 683320843 is 348023386.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-683320843 is a prime.

It is not a weakly prime, because it can be changed into another prime (683320343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341660421 + 341660422.

It is an arithmetic number, because the mean of its divisors is an integer number (341660422).

Almost surely, 2^683320843 is an apocalyptic number.

683320843 is a deficient number, since it is larger than the sum of its proper divisors (1).

683320843 is an equidigital number, since it uses as much as digits as its factorization.

683320843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 683320843 is about 26140.4063281350. The cubic root of 683320843 is about 880.7950988019.

The spelling of 683320843 in words is "six hundred eighty-three million, three hundred twenty thousand, eight hundred forty-three".