3958

3958 is a natural number that comes after 3957 and before 3959. It is an even number and, beyond being even, it has no special designation in most basic counting contexts.

Mathematically, 3958 is composite. Its prime factorization is 2 × 1979, where 1979 is a prime number. Therefore its divisors are 1, 2, 1979, and 3958, and it is not a prime or a perfect square. Because it is the product of two primes, 3958 is a semiprime.

In various numeral systems, 3958 can be represented as follows: in binary it is 111101110110, in hexadecimal it is 0xF76, and in Roman numerals it is written as MMMCMLVIII (3000 + 900 + 58).

The sum of the decimal digits of 3958 is 25, giving a digital root of 7. The number is congruent to 2 modulo 4 and to 6 modulo 8, reflecting its evenness and the specific remainder when divided by powers of two.

As a numerical label, 3958 does not have widely recognized historical, cultural, or mathematical significance beyond its basic properties. It is simply one of many four-digit integers, notable for being twice a prime (2 × 1979) and for its standard base representations.