#include<stdio.h>
int prime[10000001];//素数なら0
main(){
    //素数列を作成
    prime[0] = 1;//0,1は素数ではない
    prime[1] = 1;
    for(int i = 2;i*i <= 10000001;i++){
        if(!prime[i]){
            for(int j = i*2;j <= 10000001;j+=i){
                prime[j] = 1;
            }
        }
    }
    long long N;
    int count = 0;
    scanf("%lld",&N);
    while(N!=1){
        long long flag = N;
        for(int i = 2;i <= 10000000;i++){
            if(prime[i]){continue;}
            if(N%i==0){
                N /= i;
                count++;
                break;
            }
        }
        if(flag == N){
            count++;
            break;
        }
    }
    printf("%s\n",count>=3?"YES":"NO");
}