116821878 has 8 divisors (see below), whose sum is σ = 233643768. Its totient is φ = 38940624.

The previous prime is 116821847. The next prime is 116821891. The reversal of 116821878 is 878128611.

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

116821878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9735151 + ... + 9735162.

It is an arithmetic number, because the mean of its divisors is an integer number (29205471).

Almost surely, 2^116821878 is an apocalyptic number.

116821878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116821878 is a wasteful number, since it uses less digits than its factorization.

116821878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470318.

The product of its digits is 43008, while the sum is 42.

The square root of 116821878 is about 10808.4169978772. The cubic root of 116821878 is about 488.8489963279.

The spelling of 116821878 in words is "one hundred sixteen million, eight hundred twenty-one thousand, eight hundred seventy-eight".