686882 has 24 divisors (see below), whose sum is σ = 1233936. Its totient is φ = 285768.

The previous prime is 686879. The next prime is 686891. The reversal of 686882 is 288686.

686882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

686882 is a modest number, since divided by 882 gives 686 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4133 + ... + 4295.

It is an arithmetic number, because the mean of its divisors is an integer number (51414).

2⁶⁸⁶⁸⁸² is an apocalyptic number.

686882 is a deficient number, since it is larger than the sum of its proper divisors (547054).

686882 is a wasteful number, since it uses less digits than its factorization.

686882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 215 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 686882 is about 828.7834457806. The cubic root of 686882 is about 88.2322549367.

The spelling of 686882 in words is "six hundred eighty-six thousand, eight hundred eighty-two".