N=int(input())
def divisor_enu(N):
    l=[]
    for i in range(2,int(N**0.5)+1):
        cnt=0
        if N%i==0:
            while N%i==0:
                cnt+=1
                N//=i
            l.append((i,cnt))
    if N != 1:
        l.append((N,1))
    return l
x=divisor_enu(N)
ans=0
for i,j in x:
    ans+=j

print("YES" if ans>=3 else "NO")