682818 has 16 divisors (see below), whose sum is σ = 1373760. Its totient is φ = 226256.

The previous prime is 682811. The next prime is 682819. The reversal of 682818 is 818286.

It is a super-2 number, since 2×682818² = 932480842248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (682811) by changing a digit.

682818 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 7 ways as a sum of consecutive naturals, for example, 1723 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (85860).

2⁶⁸²⁸¹⁸ is an apocalyptic number.

682818 is an abundant number, since it is smaller than the sum of its proper divisors (690942).

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

682818 is a wasteful number, since it uses less digits than its factorization.

682818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

The product of its digits is 6144, while the sum is 33.

The square root of 682818 is about 826.3280220348. The cubic root of 682818 is about 88.0578992249.

The spelling of 682818 in words is "six hundred eighty-two thousand, eight hundred eighteen".