// No.36 素数が嫌い！
// https://yukicoder.me/problems/no/36
//

#include <iostream>
#include <vector>
using namespace std;

string solve(long long int N);


int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    long long N;
    cin >> N;
    string ans = solve(N);
    cout << ans << endl;
}

string solve(long long int N) {
    vector<long long> divisiors;
    for (long long i = 2; i*i <= N; ++i) {
        while (N % i == 0) {
            divisiors.push_back(i);
            if (N / i != i && N / i != 1)
                divisiors.push_back(N/i);
            N /= i;
        }
    }

    if (divisiors.size() >= 3)
        return "YES";
    else
        return "NO";
}