686030 has 16 divisors (see below), whose sum is σ = 1275264. Its totient is φ = 265440.

The previous prime is 686029. The next prime is 686039. The reversal of 686030 is 30686.

It is a junction number, because it is equal to n+sod(n) for n = 685987 and 686005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797 + ... + 1416.

It is an arithmetic number, because the mean of its divisors is an integer number (79704).

2⁶⁸⁶⁰³⁰ is an apocalyptic number.

686030 is a deficient number, since it is larger than the sum of its proper divisors (589234).

686030 is a wasteful number, since it uses less digits than its factorization.

686030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 686030 is about 828.2692798843. The cubic root of 686030 is about 88.1957591076.

The spelling of 686030 in words is "six hundred eighty-six thousand, thirty".