N = int(input())

count = 0
while N % 2 == 0:
    count += 1
    N //= 2

F = 3
while F * F <= N:
    while N % F == 0:
        count += 1
        N //= F
    F += 2

if N != 1:
    count += 1

if count >= 3:
    print("YES")
else:
    print("NO")