6684086839 has 2 divisors, whose sum is σ = 6684086840. Its totient is φ = 6684086838.

The previous prime is 6684086803. The next prime is 6684086873. The reversal of 6684086839 is 9386804866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6684086839 - 2¹¹ = 6684084791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6684086039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342043419 + 3342043420.

It is an arithmetic number, because the mean of its divisors is an integer number (3342043420).

Almost surely, 2^6684086839 is an apocalyptic number.

6684086839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684086839 is an equidigital number, since it uses as much as digits as its factorization.

6684086839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11943936, while the sum is 58.

The square root of 6684086839 is about 81756.2648302869. The cubic root of 6684086839 is about 1883.7099329654.

The spelling of 6684086839 in words is "six billion, six hundred eighty-four million, eighty-six thousand, eight hundred thirty-nine".