6879966 has 8 divisors (see below), whose sum is σ = 13759944. Its totient is φ = 2293320.

The previous prime is 6879959. The next prime is 6879973. The reversal of 6879966 is 6699786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6879959) and next prime (6879973).

It is a sphenic number, since it is the product of 3 distinct primes.

6879966 is an admirable number.

It is a super-2 number, since 2×6879966² = 94667864322312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573325 + ... + 573336.

It is an arithmetic number, because the mean of its divisors is an integer number (1719993).

Almost surely, 2^6879966 is an apocalyptic number.

6879966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6879966 is a wasteful number, since it uses less digits than its factorization.

6879966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146666.

The product of its digits is 979776, while the sum is 51.

The square root of 6879966 is about 2622.9689285236. The cubic root of 6879966 is about 190.1933949571.

The spelling of 6879966 in words is "six million, eight hundred seventy-nine thousand, nine hundred sixty-six".