6696839 has 2 divisors, whose sum is σ = 6696840. Its totient is φ = 6696838.

The previous prime is 6696829. The next prime is 6696853. The reversal of 6696839 is 9386966.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6696839 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6696793 and 6696802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6696829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348419 + 3348420.

It is an arithmetic number, because the mean of its divisors is an integer number (3348420).

Almost surely, 2^6696839 is an apocalyptic number.

6696839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696839 is an equidigital number, since it uses as much as digits as its factorization.

6696839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The square root of 6696839 is about 2587.8251486528. The cubic root of 6696839 is about 188.4907110321.

The spelling of 6696839 in words is "six million, six hundred ninety-six thousand, eight hundred thirty-nine".