from math import sqrt

N = int(input())

prime_checker = [1]*10000001
primes = set([])
sqrt_n = int(sqrt(N))
cnt = 0

for i in range(2, sqrt_n + 1):
    if prime_checker[i] == 1:
        if N == 1: break

        while N % i == 0:
            N //= i
            cnt += 1
            if cnt >= 3: break

        for j in range(i*2, sqrt_n + 1, i):
            prime_checker[j] = 0

if N != 1:
    cnt += 1

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