681882 has 8 divisors (see below), whose sum is σ = 1363776. Its totient is φ = 227292.

The previous prime is 681841. The next prime is 681883. The reversal of 681882 is 288186.

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

681882 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (681883) by changing a digit.

681882 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56818 + ... + 56829.

It is an arithmetic number, because the mean of its divisors is an integer number (170472).

2⁶⁸¹⁸⁸² is an apocalyptic number.

681882 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

681882 is a wasteful number, since it uses less digits than its factorization.

681882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113652.

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

The square root of 681882 is about 825.7614667687. The cubic root of 681882 is about 88.0176445336.

The spelling of 681882 in words is "six hundred eighty-one thousand, eight hundred eighty-two".