686883 has 4 divisors (see below), whose sum is σ = 915848. Its totient is φ = 457920.

The previous prime is 686879. The next prime is 686891. The reversal of 686883 is 388686.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 686883 - 2² = 686879 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 686883.

It is not an unprimeable number, because it can be changed into a prime (686843) 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 3 ways as a sum of consecutive naturals, for example, 114478 + ... + 114483.

It is an arithmetic number, because the mean of its divisors is an integer number (228962).

2⁶⁸⁶⁸⁸³ is an apocalyptic number.

686883 is a deficient number, since it is larger than the sum of its proper divisors (228965).

686883 is a wasteful number, since it uses less digits than its factorization.

686883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228964.

The product of its digits is 55296, while the sum is 39.

The square root of 686883 is about 828.7840490743. The cubic root of 686883 is about 88.2322977545.

The spelling of 686883 in words is "six hundred eighty-six thousand, eight hundred eighty-three".