use proconio::input;

fn factors(n: usize) -> Vec<usize> {
    let mut ret = vec![];
    for i in (1..).take_while(|i| i * i <= n).filter(|i| n % i == 0) {
        ret.push(i);
        if n / i != i { ret.push(n / i) }
    }
    ret
}

fn main() {
    input! {
        n: usize
    }

    println!("{}", if factors(n).iter().sum::<usize>() == 2 * n { "Yes" } else { "No" });
}