87544 has 16 divisors (see below), whose sum is σ = 169920. Its totient is φ = 42240.

The previous prime is 87541. The next prime is 87547. The reversal of 87544 is 44578.

It is an interprime number because it is at equal distance from previous prime (87541) and next prime (87547).

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 3 ways as a sum of consecutive naturals, for example, 72 + ... + 424.

It is an arithmetic number, because the mean of its divisors is an integer number (10620).

2⁸⁷⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

87544 is a deficient number, since it is larger than the sum of its proper divisors (82376).

87544 is a wasteful number, since it uses less digits than its factorization.

87544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 386 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 87544 is about 295.8783533819. The cubic root of 87544 is about 44.4026403213.

It can be divided in two parts, 875 and 44, that added together give a palindrome (919).

The spelling of 87544 in words is "eighty-seven thousand, five hundred forty-four".