6868866 has 16 divisors (see below), whose sum is σ = 13795488. Its totient is φ = 2280000.

The previous prime is 6868859. The next prime is 6868871. The reversal of 6868866 is 6688686.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775 + ... + 3786.

It is an arithmetic number, because the mean of its divisors is an integer number (862218).

Almost surely, 2^6868866 is an apocalyptic number.

6868866 is an abundant number, since it is smaller than the sum of its proper divisors (6926622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6868866 is a wasteful number, since it uses less digits than its factorization.

6868866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817.

The product of its digits is 663552, while the sum is 48.

The square root of 6868866 is about 2620.8521514958. The cubic root of 6868866 is about 190.0910551556.

The spelling of 6868866 in words is "six million, eight hundred sixty-eight thousand, eight hundred sixty-six".