6678879 has 4 divisors (see below), whose sum is σ = 8905176. Its totient is φ = 4452584.

The previous prime is 6678877. The next prime is 6678883. The reversal of 6678879 is 9788766.

It is a happy number.

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 6678879 - 2¹ = 6678877 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678871) 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, 1113144 + ... + 1113149.

It is an arithmetic number, because the mean of its divisors is an integer number (2226294).

Almost surely, 2^6678879 is an apocalyptic number.

6678879 is a deficient number, since it is larger than the sum of its proper divisors (2226297).

6678879 is a wasteful number, since it uses less digits than its factorization.

6678879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226296.

The product of its digits is 1016064, while the sum is 51.

The square root of 6678879 is about 2584.3527236041. The cubic root of 6678879 is about 188.3220581306.

It can be divided in two parts, 6678 and 879, that added together give a palindrome (7557).

The spelling of 6678879 in words is "six million, six hundred seventy-eight thousand, eight hundred seventy-nine".