6805679 has 2 divisors, whose sum is σ = 6805680. Its totient is φ = 6805678.

The previous prime is 6805663. The next prime is 6805681. The reversal of 6805679 is 9765086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6805679 - 2⁴ = 6805663 is a prime.

Together with 6805681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6805609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402839 + 3402840.

It is an arithmetic number, because the mean of its divisors is an integer number (3402840).

Almost surely, 2^6805679 is an apocalyptic number.

6805679 is a deficient number, since it is larger than the sum of its proper divisors (1).

6805679 is an equidigital number, since it uses as much as digits as its factorization.

6805679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 6805679 is about 2608.7696333713. The cubic root of 6805679 is about 189.5063733141.

The spelling of 6805679 in words is "six million, eight hundred five thousand, six hundred seventy-nine".