import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long N = sc.nextInt();
		sc.close();
		int count = 0;
		for(long t=2; t*t<N; t++){
		    while(N % t == 0){
		         N /= t; 
                 count ++;
             } 
		}
		if(N>1){
			count ++;
		}
		if(count>=3){
		    System.out.println("YES");
		}else{
		    System.out.println("NO");
		}
	}
}