Answers for "get product name from product id in woocommerce"

get product price woocommerce of specific id

$product = wc_get_product( $post_id );

$product->get_regular_price();
$product->get_sale_price();
$product->get_price();

woocommerce get product id

global $product;
$product->get_id();

woocommerce get product category name by id

$id = 42;
if( $term = get_term_by( 'id', $id, 'product_cat' ) ){
    echo $term->name;
}