eps = 0.0000001
n = int(input())
M = n**(1/3)
import math
#print(M)
MMM = math.ceil(M)
MMMM = math.floor(M)
if abs(MMMM - M) < eps:
    print("Yes")
    exit()
if abs(MMM - M) < eps:
    print("Yes")
    exit()
print("No")