6818656 has 48 divisors (see below), whose sum is σ = 14881104. Its totient is φ = 3055104.

The previous prime is 6818653. The next prime is 6818677. The reversal of 6818656 is 6568186.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15171 + ... + 15613.

It is an arithmetic number, because the mean of its divisors is an integer number (310023).

Almost surely, 2^6818656 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 6818656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7440552).

6818656 is an abundant number, since it is smaller than the sum of its proper divisors (8062448).

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

6818656 is a wasteful number, since it uses less digits than its factorization.

6818656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 495 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 6818656 is about 2611.2556366622. The cubic root of 6818656 is about 189.6267464508.

The spelling of 6818656 in words is "six million, eight hundred eighteen thousand, six hundred fifty-six".