43587 has 12 divisors (see below), whose sum is σ = 65520. Its totient is φ = 27888.

The previous prime is 43579. The next prime is 43591. The reversal of 43587 is 78534.

It is not a de Polignac number, because 43587 - 2³ = 43579 is a prime.

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 43587.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43587.

It is not an unprimeable number, because it can be changed into a prime (43517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 344.

It is an arithmetic number, because the mean of its divisors is an integer number (5460).

2⁴³⁵⁸⁷ is an apocalyptic number.

43587 is a deficient number, since it is larger than the sum of its proper divisors (21933).

43587 is a wasteful number, since it uses less digits than its factorization.

43587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 199 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 43587 is about 208.7749985032. The cubic root of 43587 is about 35.1926788321.

It can be divided in two parts, 43 and 587, that added together give a triangular number (630 = T₃₅).

The spelling of 43587 in words is "forty-three thousand, five hundred eighty-seven".