87188 has 12 divisors (see below), whose sum is σ = 155232. Its totient is φ = 42840.

The previous prime is 87187. The next prime is 87211. The reversal of 87188 is 88178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87181) 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 3 ways as a sum of consecutive naturals, for example, 131 + ... + 437.

It is an arithmetic number, because the mean of its divisors is an integer number (12936).

2⁸⁷¹⁸⁸ is an apocalyptic number.

It is an amenable number.

87188 is a deficient number, since it is larger than the sum of its proper divisors (68044).

87188 is a wasteful number, since it uses less digits than its factorization.

87188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its digits is 3584, while the sum is 32.

The square root of 87188 is about 295.2761419417. The cubic root of 87188 is about 44.3423703790.

Subtracting 87188 from its reverse (88178), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 871 and 88, that added together give a palindrome (959).

The spelling of 87188 in words is "eighty-seven thousand, one hundred eighty-eight".