116823987 has 36 divisors (see below), whose sum is σ = 198392376. Its totient is φ = 66044160.

The previous prime is 116823901. The next prime is 116823997. The reversal of 116823987 is 789328611.

It is not a de Polignac number, because 116823987 - 2⁷ = 116823859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116823997) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41412 + ... + 44142.

Almost surely, 2^116823987 is an apocalyptic number.

116823987 is a deficient number, since it is larger than the sum of its proper divisors (81568389).

116823987 is a wasteful number, since it uses less digits than its factorization.

116823987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848 (or 2838 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 116823987 is about 10808.5145602900. The cubic root of 116823987 is about 488.8519380609.

The spelling of 116823987 in words is "one hundred sixteen million, eight hundred twenty-three thousand, nine hundred eighty-seven".