#include <stdio.h>

int main() {
	int count=0;
	long long n,i;
	scanf("%lld",&n);
	printf("%lld",n);
	for (i=2;n!=1;i++) {
		while (n%i==0) {
			n/=i;
			if (count==0)
				count=1;
			else {
				puts("YES");
				return 0;
			}
		}
	}
	puts("NO");
    return 0;
}