686514 has 8 divisors (see below), whose sum is σ = 1373040. Its totient is φ = 228836.

The previous prime is 686513. The next prime is 686519. The reversal of 686514 is 415686.

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

686514 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 686514.

It is not an unprimeable number, because it can be changed into a prime (686513) 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, 57204 + ... + 57215.

It is an arithmetic number, because the mean of its divisors is an integer number (171630).

2⁶⁸⁶⁵¹⁴ is an apocalyptic number.

686514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

686514 is a wasteful number, since it uses less digits than its factorization.

686514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114424.

The product of its digits is 5760, while the sum is 30.

The square root of 686514 is about 828.5614038802. The cubic root of 686514 is about 88.2164951846.

The spelling of 686514 in words is "six hundred eighty-six thousand, five hundred fourteen".