3979

3979 is the natural number that comes after 3978 and before 3980. It is odd and composite, with a prime factorization of 23 × 173, making it a semiprime.

Its divisors are 1, 23, 173, and 3979. Because it is the product of two primes, it is neither a prime nor a perfect square. The sum of its digits is 28, so it is not divisible by 3. It is congruent to 3 modulo 4.

In other bases, 3979 has the following representations: in hexadecimal it is 0xF8B, in octal it is 7613, and in binary it is 111110001011. In Roman numerals it is written as MMMCMLXXIX (3000 + 900 + 70 + 9). In base 9, it is 5411_9. These representations highlight its status as a composite number with multiple valid numeral systems.

There is no widely recognized historical or cultural significance attached to the number 3979 beyond its mathematical properties. It is commonly encountered in discussions of semiprimes and integer factorization, where its simple factorization serves as a straightforward example.