Preheat the oven to 400°F (200°C).
Wash and dry the potatoes, then cut them into large chunks.
Place the chicken in a roasting pan and rub the skin with olive oil, salt, black pepper, thyme, paprika, and garlic powder.
Arrange the potato chunks around the chicken in the roasting pan.
Roast the chicken and potatoes in the preheated oven for 1 hour, or until the chicken is cooked through and the potatoes are crispy and golden brown.
Remove the chicken and potatoes from the oven and let them rest for a few minutes before serving.
Serve the roast chicken with the crispy potatoes.