7989

7989 is a natural number that lies between 7988 and 7990. In mathematics, it is an odd composite number and a semiprime, being the product of two primes: 3 and 2663. The sum of its digits is 33, which makes it divisible by 3 but not by 9. Its prime factorization is 3 × 2663, with 2663 being a prime number. As a result, 7989 is not a perfect power (not a square, cube, or higher power of an integer). In modular arithmetic, 7989 is congruent to 0 modulo 3, 1 modulo 4, and 6 modulo 9.

Beyond pure math, 7989 may appear as a designation in various catalogs, models, or datasets, but there is no widely recognized meaning or event universally associated with this number. Like many integers, it can function as an arbitrary label in texts, inventories, or mathematical examples.

See also: 7988, 7990, semiprimes.