87318 has 60 divisors (see below), whose sum is σ = 248292. Its totient is φ = 22680.

The previous prime is 87317. The next prime is 87323. The reversal of 87318 is 81378.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87291 and 87300.

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 87318.

It is not an unprimeable number, because it can be changed into a prime (87313) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7933 + ... + 7943.

2⁸⁷³¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124146).

87318 is an abundant number, since it is smaller than the sum of its proper divisors (160974).

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

87318 is a wasteful number, since it uses less digits than its factorization.

87318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39 (or 23 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 87318 is about 295.4961928689. The cubic root of 87318 is about 44.3643980491.

The spelling of 87318 in words is "eighty-seven thousand, three hundred eighteen".