686234 has 8 divisors (see below), whose sum is σ = 1034208. Its totient is φ = 341500.

The previous prime is 686209. The next prime is 686267. The reversal of 686234 is 432686.

686234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 686197 and 686206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182 + ... + 1185.

It is an arithmetic number, because the mean of its divisors is an integer number (129276).

2⁶⁸⁶²³⁴ is an apocalyptic number.

686234 is a deficient number, since it is larger than the sum of its proper divisors (347974).

686234 is a wasteful number, since it uses less digits than its factorization.

686234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its digits is 6912, while the sum is 29.

The square root of 686234 is about 828.3924190865. The cubic root of 686234 is about 88.2045002957.

The spelling of 686234 in words is "six hundred eighty-six thousand, two hundred thirty-four".