import static java.lang.System.err;

public class Main {
	public static void main(String[] args) {
		java.io.PrintWriter out = new java.io.PrintWriter(System.out);
		new Main(out);
		out.flush();
		err.flush();
	}

	public Main(java.io.PrintWriter out) {
		try (java.util.Scanner sc = new java.util.Scanner(System.in)) {
			long N = sc.nextLong();
			for (long p = 2;p * p <= N;++ p) {
				if (N % p != 0) continue;
				while(N % p == 0) N /= p;
				if (N == 1) {
					out.println("Yes");
					return;
				}
				cont: for (int j = 1;j <= 40;++ j) {
					long q = Math.round(Math.pow(N, 1.0 / j));
					for (long k = 2;k * k <= q;++ k) {
						if (q % k == 0) continue cont;
					}
					long q2 = 1;
					for (int k = 1;k <= j;++ k) q2 *= q;
					if (q2 == N) {
						out.println("Yes");
						return;
					}
				}
				break;
			}
			out.println("No");
		}
	}
}