use std::{
    collections::{BTreeSet, HashMap},
    hash::Hash,
    thread::panicking,
};

const TEN9PLUS7: u64 = 1000000007;
fn main() {
    proconio::input! {
        n: u64,
    }
    let x = factorize(n);
    eprintln!("{x:?}");
    if x.len() >= 3 {
        println!("YES");
    } else {
        println!("NO");
    }
}

// 素因数分解
fn factorize(x: u64) -> Vec<u64> {
    let mut tbl = Vec::new();
    let mut x = x;
    let mut i = 2;
    while i * i <= x {
        if x % i == 0 {
            tbl.push(i);
            x /= i;
        } else {
            i += 1;
        }
    }
    if x != 1 {
        tbl.push(x);
    }
    tbl
}