6868871 has 2 divisors, whose sum is σ = 6868872. Its totient is φ = 6868870.

The previous prime is 6868859. The next prime is 6868879. The reversal of 6868871 is 1788686.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6868871 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6868879) 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, 3434435 + 3434436.

It is an arithmetic number, because the mean of its divisors is an integer number (3434436).

Almost surely, 2^6868871 is an apocalyptic number.

6868871 is a deficient number, since it is larger than the sum of its proper divisors (1).

6868871 is an equidigital number, since it uses as much as digits as its factorization.

6868871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 44.

The square root of 6868871 is about 2620.8531053838. The cubic root of 6868871 is about 190.0911012794.

The spelling of 6868871 in words is "six million, eight hundred sixty-eight thousand, eight hundred seventy-one".