6818 has 8 divisors (see below), whose sum is σ = 11712. Its totient is φ = 2916.

The previous prime is 6803. The next prime is 6823. The reversal of 6818 is 8186.

6818 = 1⁸ + 2⁸ + 3⁸.

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

It is a junction number, because it is equal to n+sod(n) for n = 6793 and 6802.

It is an unprimeable number.

6818 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230 + ... + 257.

It is an arithmetic number, because the mean of its divisors is an integer number (1464).

2⁶⁸¹⁸ is an apocalyptic number.

6818 is a deficient number, since it is larger than the sum of its proper divisors (4894).

6818 is a wasteful number, since it uses less digits than its factorization.

6818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 384, while the sum is 23.

The square root of 6818 is about 82.5711814134. The cubic root of 6818 is about 18.9620665138.

The spelling of 6818 in words is "six thousand, eight hundred eighteen".