8987

8987 is a natural number that comes after 8986 and before 8988. In prime factorization, it equals 11 × 19 × 43, the product of three distinct primes. Because all prime factors occur to the first power, 8987 is square-free and odd. It has eight positive divisors.

The positive divisors of 8987 are 1, 11, 19, 43, 209, 473, 817, and 8987. The divisor set confirms that 8987 is not prime and not a perfect square. The sum of its divisors is 10560, so the sum of proper divisors is 1573, which factors as 11^2 × 13.

Representation in other bases: in binary it is 10001100011011, in hexadecimal 0x231B, in octal 21433, and in base 12 it is 524B. The digital sum is 32 (digital root 5). It is congruent to 3 modulo 4 and to 2 modulo 3.

In mathematical contexts, 8987 serves as an example of a composite, square-free number whose factorization is a product of three distinct primes. As a natural number, it also appears as an ordinary identifier in various catalogs and data sets when numbers are assigned sequentially.