N = int(input())

cnt = 0

while N%2 == 0:
    N //= 2
    cnt += 1
    if cnt > 2:
        print('YES')
        exit()

for i in range(3, int(N**0.5)+1, 2):
    while N%i == 0:
        N //= i
        cnt += 1
        if cnt > 2:
            print('YES')
            exit()

cnt += (N!=1)

print('YES' if cnt > 2 else 'NO')