116987 has 4 divisors (see below), whose sum is σ = 126000. Its totient is φ = 107976.

The previous prime is 116981. The next prime is 116989. The reversal of 116987 is 789611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116987 - 2⁶ = 116923 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 116987.

It is not an unprimeable number, because it can be changed into a prime (116981) 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 3 ways as a sum of consecutive naturals, for example, 4487 + ... + 4512.

It is an arithmetic number, because the mean of its divisors is an integer number (31500).

2¹¹⁶⁹⁸⁷ is an apocalyptic number.

116987 is a deficient number, since it is larger than the sum of its proper divisors (9013).

116987 is an equidigital number, since it uses as much as digits as its factorization.

116987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9012.

The product of its digits is 3024, while the sum is 32.

The square root of 116987 is about 342.0336240781. The cubic root of 116987 is about 48.9079209264.

The spelling of 116987 in words is "one hundred sixteen thousand, nine hundred eighty-seven".