87543 has 12 divisors (see below), whose sum is σ = 129168. Its totient is φ = 57120.

The previous prime is 87541. The next prime is 87547. The reversal of 87543 is 34578.

It is not a de Polignac number, because 87543 - 2¹ = 87541 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571 + ... + 707.

It is an arithmetic number, because the mean of its divisors is an integer number (10764).

2⁸⁷⁵⁴³ is an apocalyptic number.

87543 is a deficient number, since it is larger than the sum of its proper divisors (41625).

87543 is a wasteful number, since it uses less digits than its factorization.

87543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 211 counting only the distinct ones).

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

The square root of 87543 is about 295.8766634934. The cubic root of 87543 is about 44.4024712528.

It can be divided in two parts, 8754 and 3, that multiplied together give a palindrome (26262).

The spelling of 87543 in words is "eighty-seven thousand, five hundred forty-three".