6487 has 4 divisors (see below), whose sum is σ = 7000. Its totient is φ = 5976.

The previous prime is 6481. The next prime is 6491. The reversal of 6487 is 7846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7846 = 2 ⋅3923.

It is a cyclic number.

It is not a de Polignac number, because 6487 - 2⁷ = 6359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481) 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, 237 + ... + 262.

It is an arithmetic number, because the mean of its divisors is an integer number (1750).

2⁶⁴⁸⁷ is an apocalyptic number.

6487 is the 47-th hex number.

6487 is a deficient number, since it is larger than the sum of its proper divisors (513).

6487 is a wasteful number, since it uses less digits than its factorization.

6487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its digits is 1344, while the sum is 25.

The square root of 6487 is about 80.5419145539. The cubic root of 6487 is about 18.6501057765.

It can be divided in two parts, 64 and 87, that added together give a palindrome (151).

The spelling of 6487 in words is "six thousand, four hundred eighty-seven".