# -*- coding: utf-8 -*-
"""
No.36 素数が嫌い！
https://yukicoder.me/problems/no/36

"""
import sys
from sys import stdin
input = stdin.readline


def solve(N):
    divisors = []
    for i in range(2, int(N**0.5)+1):
        while N % i == 0:
            divisors.append(i)
            if N // i != i and N // i != 1:
                divisors.append(N // i)
            N //= i
    if len(divisors) >= 3:
        return 'YES'
    else:
        return 'NO'


def main(args):
    N = int(input())
    ans = solve(N)
    print(ans)


if __name__ == '__main__':
    main(sys.argv[1:])