#include <bits/stdc++.h>

#include <atcoder/all>
#define rep(i, a, b) for (ll i = (ll)(a); i < (ll)(b); i++)
using namespace atcoder;
using namespace std;

typedef long long ll;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(12);
    int n;
    cin >> n;
    int nw = 1;
    rep(i, 1, 10) {
        nw *= i;
        if (nw == n) {
            cout << "Yes" << endl;
            return 0;
        }
    }
    cout << "No" << endl;
}