3427

3427 is a natural number that follows 3426 and precedes 3428. In prime factorization, it equals 23 × 149, making it a semiprime and square-free.

Its divisors are 1, 23, 149, and 3427. The Euler totient φ(3427) is 3256, and the sum of its divisors σ(3427) is 3600. The sum of proper divisors is 173, so 3427 is a deficient number.

In various representations, 3427 is 110101100011 in binary, 0xD63 in hexadecimal, and MMMCDXXVII in Roman numerals.

As a product of two distinct primes, 3427 is a semiprime, which has applications in basic number theory as an example of a composite with exactly four divisors. It is odd and not a palindrome, and there is no widely known cultural or historical significance attached to the number.