x=int(input())

# 素因数分解
import math 
L=int(math.sqrt(x))

FACT=dict()

for i in range(2,L+2):
    while x%i==0:
        FACT[i]=FACT.get(i,0)+1
        x=x//i

if x!=1:
    FACT[x]=FACT.get(x,0)+1

if len(FACT)>=3 or (len(FACT)==2 and max(FACT.values())>=2) or len(FACT)==1 and max(FACT.values())>=3:
    print("YES")
else:
    print("NO")