3695

3695 is a natural number that lies between 3694 and 3696. It is a semiprime, being the product of two distinct primes, 5 and 739; consequently it is composite but not a square.

Its positive divisors are 1, 5, 739, and 3695. The divisor count is four, and Euler's totient function gives φ(3695) = 2952.

Representations: in base 10 its digits sum to 23. In binary it equals 111001101111, and in hexadecimal it is 0xE6F. In Roman numerals it is written as MMMDCXCV, representing 3000 + 600 + 90 + 5.

From a number-theory perspective, 3695 is not a sum of two squares, since it has a prime factor 739 ≡ 3 (mod 4) occurring to the first power. The prime factorization is 5 × 739, confirming its status as a semiprime.