local ffi = require("ffi")
local C = ffi.C
ffi.cdef[[
long long atoll(const char*);
]]

local function lltonumber(str)
  return C.atoll(str)
end

local n = lltonumber(io.read())
for i = 1, 1000000 do
  i = 1LL * i
  if i * i * i == n then
    print("Yes") os.exit()
  end
end
print("No")