6423

6423 is a natural number that comes after 6422 and before 6424. In base-10 notation it is a four-digit odd integer.

In mathematics, 6423 is composite, with prime factorization 3 × 2141; 2141 is prime. It is divisible by 3 but not by 9.

The sum of its digits is 15, so 6423 is not a Harshad (Niven) number. The product of its digits is 144. Its binary representation is 110010001010111.