import math
N = int(input())

limit = int(math.sqrt(N))
div = []
n = N
i = 2

if (n == 1 or n == 2) :
    print('NO')
elif (n % 2  == 0) :
    print('YES')
else :
    for i in range(3, limit + 1, 2) :
        if (n % i == 0) :
            print('YES')
            break
    else :
        print('NO')