87186 has 16 divisors (see below), whose sum is σ = 190368. Its totient is φ = 26400.

The previous prime is 87181. The next prime is 87187. The reversal of 87186 is 68178.

It is not an unprimeable number, because it can be changed into a prime (87181) by changing a digit.

87186 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 595 + ... + 726.

It is an arithmetic number, because the mean of its divisors is an integer number (11898).

2⁸⁷¹⁸⁶ is an apocalyptic number.

87186 is an abundant number, since it is smaller than the sum of its proper divisors (103182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95184).

87186 is a wasteful number, since it uses less digits than its factorization.

87186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 2688, while the sum is 30.

The square root of 87186 is about 295.2727552620. The cubic root of 87186 is about 44.3420313208.

The spelling of 87186 in words is "eighty-seven thousand, one hundred eighty-six".