6678679 has 4 divisors (see below), whose sum is σ = 7632784. Its totient is φ = 5724576.

The previous prime is 6678667. The next prime is 6678691. The reversal of 6678679 is 9768766.

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

It is an interprime number because it is at equal distance from previous prime (6678667) and next prime (6678691).

It is a cyclic number.

It is not a de Polignac number, because 6678679 - 2⁵ = 6678647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678629) 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 in 3 ways as a sum of consecutive naturals, for example, 477042 + ... + 477055.

It is an arithmetic number, because the mean of its divisors is an integer number (1908196).

Almost surely, 2^6678679 is an apocalyptic number.

6678679 is a deficient number, since it is larger than the sum of its proper divisors (954105).

6678679 is an equidigital number, since it uses as much as digits as its factorization.

6678679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954104.

The product of its digits is 762048, while the sum is 49.

The square root of 6678679 is about 2584.3140289059. The cubic root of 6678679 is about 188.3201783347.

The spelling of 6678679 in words is "six million, six hundred seventy-eight thousand, six hundred seventy-nine".