6886879 has 4 divisors (see below), whose sum is σ = 6902280. Its totient is φ = 6871480.

The previous prime is 6886843. The next prime is 6886883. The reversal of 6886879 is 9786886.

6886879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6886879 - 2⁹ = 6886367 is a prime.

It is a Duffinian number.

6886879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6886679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7009 + ... + 7930.

It is an arithmetic number, because the mean of its divisors is an integer number (1725570).

Almost surely, 2^6886879 is an apocalyptic number.

6886879 is a deficient number, since it is larger than the sum of its proper divisors (15401).

6886879 is a wasteful number, since it uses less digits than its factorization.

6886879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15400.

The product of its digits is 1161216, while the sum is 52.

The square root of 6886879 is about 2624.2863791896. The cubic root of 6886879 is about 190.2570758343.

The spelling of 6886879 in words is "six million, eight hundred eighty-six thousand, eight hundred seventy-nine".