5873

5873 is a natural number that follows 5872 and precedes 5874. It is an odd composite number with prime factorization 5873 = 7 × 839, where both 7 and 839 are prime. As a product of two primes, 5873 is a semiprime and has exactly four positive divisors: 1, 7, 839, and 5873.

In modular arithmetic, 5873 is congruent to 1 modulo 4 (5873 ≡ 1 (mod 4)). Because its prime factors include primes of the form 4k+3 with odd exponents, 5873 cannot be expressed as a sum of two squares.

Additional numerical properties include a digit sum of 23, yielding a digital root of 5. In binary, 5873 is represented as 1011011110001. The number is odd and not prime, and its divisor set is limited to 1, 7, 839, and 5873.

Context and uses: as a small semiprime, 5873 serves as a straightforward example in discussions of factorization and number theory. It is not known for any widely recognized applications in modern cryptography due to its small size, but it illustrates general properties of semiprimes, parity, and modular representations.