6680856 has 192 divisors, whose sum is σ = 22982400. Its totient is φ = 1596672.

The previous prime is 6680851. The next prime is 6680873. The reversal of 6680856 is 6580866.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680851) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 290461 + ... + 290483.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

Almost surely, 2^6680856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6680856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11491200).

6680856 is an abundant number, since it is smaller than the sum of its proper divisors (16301544).

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

6680856 is a wasteful number, since it uses less digits than its factorization.

6680856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 6680856 is about 2584.7351895310. The cubic root of 6680856 is about 188.3406378942.

The spelling of 6680856 in words is "six million, six hundred eighty thousand, eight hundred fifty-six".