87117 has 8 divisors (see below), whose sum is σ = 118080. Its totient is φ = 57120.

The previous prime is 87107. The next prime is 87119. The reversal of 87117 is 71178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87117 - 2⁸ = 86861 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (14760).

2⁸⁷¹¹⁷ is an apocalyptic number.

It is an amenable number.

87117 is a deficient number, since it is larger than the sum of its proper divisors (30963).

87117 is a wasteful number, since it uses less digits than its factorization.

87117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483.

The product of its digits is 392, while the sum is 24.

The square root of 87117 is about 295.1558910135. The cubic root of 87117 is about 44.3303306363.

It can be divided in two parts, 871 and 17, that added together give a palindrome (888).

The spelling of 87117 in words is "eighty-seven thousand, one hundred seventeen".