115687 has 8 divisors (see below), whose sum is σ = 136080. Its totient is φ = 96960.

The previous prime is 115679. The next prime is 115693. The reversal of 115687 is 786511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115687 - 2³ = 115679 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 547.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2¹¹⁵⁶⁸⁷ is an apocalyptic number.

115687 is a deficient number, since it is larger than the sum of its proper divisors (20393).

115687 is a wasteful number, since it uses less digits than its factorization.

115687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its digits is 1680, while the sum is 28.

The square root of 115687 is about 340.1279171135. The cubic root of 115687 is about 48.7260851363.

The spelling of 115687 in words is "one hundred fifteen thousand, six hundred eighty-seven".