fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let mut n: u64 = n.trim().parse().unwrap();

    let mut count = 0;
    for i in 2.. {
        if i * i > n {
            break;
        }
        while n % i == 0 {
            n /= i;
            count += 1;
        }
    }

    if n > 1 {
        count += 1;
    }

    if count >= 3 {
        println!("YES");
    } else {
        println!("NO");
    }
}