6813659 has 2 divisors, whose sum is σ = 6813660. Its totient is φ = 6813658.

The previous prime is 6813649. The next prime is 6813673. The reversal of 6813659 is 9563186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6813659 - 2⁸ = 6813403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6813629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406829 + 3406830.

It is an arithmetic number, because the mean of its divisors is an integer number (3406830).

Almost surely, 2^6813659 is an apocalyptic number.

6813659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6813659 is an equidigital number, since it uses as much as digits as its factorization.

6813659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 6813659 is about 2610.2986419182. The cubic root of 6813659 is about 189.5804129593.

The spelling of 6813659 in words is "six million, eight hundred thirteen thousand, six hundred fifty-nine".