6678776 has 32 divisors (see below), whose sum is σ = 13608000. Its totient is φ = 3054720.

The previous prime is 6678767. The next prime is 6678779. The reversal of 6678776 is 6778766.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6678776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678779) 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 7 ways as a sum of consecutive naturals, for example, 15281 + ... + 15711.

It is an arithmetic number, because the mean of its divisors is an integer number (425250).

Almost surely, 2^6678776 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 6678776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6804000).

6678776 is an abundant number, since it is smaller than the sum of its proper divisors (6929224).

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

6678776 is a wasteful number, since it uses less digits than its factorization.

6678776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 595 counting only the distinct ones).

The product of its digits is 592704, while the sum is 47.

The square root of 6678776 is about 2584.3327959069. The cubic root of 6678776 is about 188.3210900404.

The spelling of 6678776 in words is "six million, six hundred seventy-eight thousand, seven hundred seventy-six".