686085711 has 16 divisors (see below), whose sum is σ = 971964000. Its totient is φ = 430475904.

The previous prime is 686085703. The next prime is 686085731. The reversal of 686085711 is 117580686.

It is not a de Polignac number, because 686085711 - 2³ = 686085703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686085731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8536 + ... + 38013.

It is an arithmetic number, because the mean of its divisors is an integer number (60747750).

Almost surely, 2^686085711 is an apocalyptic number.

686085711 is a deficient number, since it is larger than the sum of its proper divisors (285878289).

686085711 is an equidigital number, since it uses as much as digits as its factorization.

686085711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46603 (or 46569 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 686085711 is about 26193.2378869051. The cubic root of 686085711 is about 881.9814643808.

The spelling of 686085711 in words is "six hundred eighty-six million, eighty-five thousand, seven hundred eleven".