116887689 has 18 divisors (see below), whose sum is σ = 171084186. Its totient is φ = 76901760.

The previous prime is 116887657. The next prime is 116887723. The reversal of 116887689 is 986788611.

It can be written as a sum of positive squares in only one way, i.e., 94420089 + 22467600 = 9717^2 + 4740^2 .

It is not a de Polignac number, because 116887689 - 2⁵ = 116887657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111887689) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55129 + ... + 57209.

It is an arithmetic number, because the mean of its divisors is an integer number (9504677).

Almost surely, 2^116887689 is an apocalyptic number.

It is an amenable number.

116887689 is a deficient number, since it is larger than the sum of its proper divisors (54196497).

116887689 is an equidigital number, since it uses as much as digits as its factorization.

116887689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2163 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 116887689 is about 10811.4610021033. The cubic root of 116887689 is about 488.9407759457.

The spelling of 116887689 in words is "one hundred sixteen million, eight hundred eighty-seven thousand, six hundred eighty-nine".