5687 has 6 divisors (see below), whose sum is σ = 6384. Its totient is φ = 5060.

The previous prime is 5683. The next prime is 5689. The reversal of 5687 is 7865.

It is not a de Polignac number, because 5687 - 2² = 5683 is a prime.

It is a super-3 number, since 3×5687³ = 551786333109, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98 + ... + 144.

It is an arithmetic number, because the mean of its divisors is an integer number (1064).

5687 is a deficient number, since it is larger than the sum of its proper divisors (697).

5687 is a wasteful number, since it uses less digits than its factorization.

5687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 58 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 5687 is about 75.4122006044. The cubic root of 5687 is about 17.8495693598.

It can be divided in two parts, 568 and 7, that added together give a palindrome (575).

The spelling of 5687 in words is "five thousand, six hundred eighty-seven".