def solve():
    N = int(input())
    pfs = []

    for p in range(2, N + 1):
        if p**2 > N:
            break
        while N % p == 0:
            pfs.append(p)
            N //= p

    if N > 1:
        pfs.append(N)

    # print(pfs)

    if len(pfs) < 3:
        print('NO')
    else:
        print('YES')

if __name__ == '__main__':
    solve()