fun main(arr:Array<String>) {
    val num = readLine()!!.toLong()
    val ans = if(canUse(num)) "YES" else "NO"
    println(ans)
}

fun canUse(num:Long):Boolean {
    var cur = 2.toLong()
    var target = num;
    var ans = 0
    while (target > 1.toLong() && cur <= target && cur*cur<num) {
        var cnt = 0
        while (target % cur == 0.toLong()) {
            cnt++;
            target = target / cur
            if(cnt >= 2 && target > 1) {
                return true
            }
        }
        ans += cnt
        cur++
        if(ans >= 3) {
            return true
        }
    }
    return false
}