6387 has 4 divisors (see below), whose sum is σ = 8520. Its totient is φ = 4256.

The previous prime is 6379. The next prime is 6389. The reversal of 6387 is 7836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6387 - 2³ = 6379 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (6389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062 + ... + 1067.

It is an arithmetic number, because the mean of its divisors is an integer number (2130).

2⁶³⁸⁷ is an apocalyptic number.

6387 is a deficient number, since it is larger than the sum of its proper divisors (2133).

6387 is a wasteful number, since it uses less digits than its factorization.

6387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its digits is 1008, while the sum is 24.

The square root of 6387 is about 79.9187086983. The cubic root of 6387 is about 18.5537758435.

It can be divided in two parts, 6 and 387, that added together give a palindrome (393).

The spelling of 6387 in words is "six thousand, three hundred eighty-seven".