6776856 has 48 divisors (see below), whose sum is σ = 18666960. Its totient is φ = 2220480.

The previous prime is 6776813. The next prime is 6776873. The reversal of 6776856 is 6586776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3621 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (388895).

Almost surely, 2^6776856 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 6776856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9333480).

6776856 is an abundant number, since it is smaller than the sum of its proper divisors (11890104).

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

6776856 is a wasteful number, since it uses less digits than its factorization.

6776856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1609 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 6776856 is about 2603.2395202901. The cubic root of 6776856 is about 189.2384661065.

The spelling of 6776856 in words is "six million, seven hundred seventy-six thousand, eight hundred fifty-six".