686307 has 8 divisors (see below), whose sum is σ = 968976. Its totient is φ = 430592.

The previous prime is 686293. The next prime is 686317. The reversal of 686307 is 703686.

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

It is a cyclic number.

It is not a de Polignac number, because 686307 - 2⁸ = 686051 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 686307.

It is not an unprimeable number, because it can be changed into a prime (686317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6678 + ... + 6779.

It is an arithmetic number, because the mean of its divisors is an integer number (121122).

2⁶⁸⁶³⁰⁷ is an apocalyptic number.

686307 is a deficient number, since it is larger than the sum of its proper divisors (282669).

686307 is a wasteful number, since it uses less digits than its factorization.

686307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13477.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 686307 is about 828.4364791582. The cubic root of 686307 is about 88.2076278490.

The spelling of 686307 in words is "six hundred eighty-six thousand, three hundred seven".