970

970 = 2 x 5 x 97.

970 has two representations as a sum of two squares: 970 = 3² + 31² = 21² + 23².

970 is a heptagonal number (A000566).

970 is the number of connected graphs with 8 vertices and 17 edges.

970 is 33022 in base 4 and 12340 in base 5.

The sum of the divisors of 970 is a square (A006532): 1 + 2 + 5 + 10 + 97 + 194 + 485 + 970 = 1764 = 42².

Source: What's Special About This Number?