686701 has 8 divisors (see below), whose sum is σ = 711360. Its totient is φ = 662592.

The previous prime is 686687. The next prime is 686723. The reversal of 686701 is 107686.

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 686701 - 2⁵ = 686669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 686701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6021 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (88920).

2⁶⁸⁶⁷⁰¹ is an apocalyptic number.

It is an amenable number.

686701 is a deficient number, since it is larger than the sum of its proper divisors (24659).

686701 is a wasteful number, since it uses less digits than its factorization.

686701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 686701 is about 828.6742423896. The cubic root of 686701 is about 88.2245042405.

The spelling of 686701 in words is "six hundred eighty-six thousand, seven hundred one".