def make_divisors(n):
    lower_divisors,upper_divisors=[],[]
    i=1
    while i*i<=n:
        if n%i==0:
            lower_divisors.append(i)
            if i!=n//i:
                upper_divisors.append(n//i)
        i+=1
    return lower_divisors+upper_divisors[::-1]
import math
def isprime(n):
    if n < 2:
        return False
    if n == 2:
        return True
    if n % 2 == 0:
        return False
    for i in range(3, int(math.sqrt(n)) + 1, 2):
        if n % i == 0: return False
    return True


n=int(input())
lis=make_divisors(n)
for num in lis:
    if num!=1 and num!=n and isprime(num)==False:
        print('YES')
        exit()
print('NO')