3622

3622 is a natural number that lies between 3621 and 3623. In arithmetic terms, it is an even semiprime equal to 2 × 1811, with 1811 prime. Its positive divisors are 1, 2, 1811, and 3622, and its Euler totient is φ(3622) = 1810. The number of divisors is four.

In commonly used numeral systems, 3622 is represented as 111000100110 in binary, 0xE26 in hexadecimal, and 7046 in octal. In Roman numerals, it is written as MMMDCXXII.

As a four-digit integer, 3622 has no widely known historical or mathematical significance beyond its basic properties, though it can appear in contexts such as numbering, cataloging, or coding. It serves as a straightforward example of a small even semiprime and of how factorization influences divisor count and totient values.