6868859 has 2 divisors, whose sum is σ = 6868860. Its totient is φ = 6868858.

The previous prime is 6868843. The next prime is 6868871. The reversal of 6868859 is 9588686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6868859 - 2⁴ = 6868843 is a prime.

It is not a weakly prime, because it can be changed into another prime (6868819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434429 + 3434430.

It is an arithmetic number, because the mean of its divisors is an integer number (3434430).

Almost surely, 2^6868859 is an apocalyptic number.

6868859 is a deficient number, since it is larger than the sum of its proper divisors (1).

6868859 is an equidigital number, since it uses as much as digits as its factorization.

6868859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 50.

The square root of 6868859 is about 2620.8508160519. The cubic root of 6868859 is about 190.0909905822.

The spelling of 6868859 in words is "six million, eight hundred sixty-eight thousand, eight hundred fifty-nine".