N = int(input())

import sys
p = -1
a = 0
for i in range(2,10 * 6 + 1):
    if N % i == 0:
        p = i
        while N % i == 0:
            N //= i
            a += 1
        break
    
if p == -1:
    print('Yes')
    exit()
if N == 1:
    print('Yes')
    exit()
else:
    q = -1
    b = 0
    for i in range(2,10 ** 6 + 1):
        if N % i == 0:
            while N % i == 0:
                N //= i
            if N == 1:
                print('Yes')
            else:
                print('No')
            exit()