Abram was eighty-six years old when Hagar bore Ishmael to him.

Genesis 12:4
So Abram departed, as the LORD had directed him, and Lot went with him. Abram was seventy-five years old when he left Haran.

Genesis 16:3
So after he had lived in Canaan for ten years, his wife Sarai took her Egyptian maidservant Hagar and gave her to Abram to be his wife.

Genesis 16:15
And Hagar bore Abram a son, and Abram gave the name Ishmael to the son she had borne.

Genesis 17:25
and his son Ishmael was thirteen;

Genesis 25:17
Ishmael lived a total of 137 years. Then he breathed his last and died, and was gathered to his people.

And Abram was fourscore and six years old, when Hagar bore Ishmael to Abram.