N = int(input())
for i in range(2, int(N**(0.5))+1):
    if N % i == 0:
        a = 0
        while N % i == 0:
            N //= i
            a += 1
        if N == 1:
            print("Yes")
            exit()
        for j in range(2, int(N**(0.5))+1):
            if N % j == 0:
                b = 0
                while N % j == 0:
                    N //= j
                    b += 1
                if N == 1:
                    print("Yes")
                    exit()
                else:
                    print("No")
                    exit()
        else:
            print("Yes")
            exit()
else:
    print("Yes")