import decimal
import math
eps = 0.000000001
import decimal
n = int(input())
M = decimal.Decimal(pow(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")