117919686 has 8 divisors (see below), whose sum is σ = 235839384. Its totient is φ = 39306560.

The previous prime is 117919679. The next prime is 117919709. The reversal of 117919686 is 686919711.

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

117919686 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, 9826635 + ... + 9826646.

It is an arithmetic number, because the mean of its divisors is an integer number (29479923).

Almost surely, 2^117919686 is an apocalyptic number.

117919686 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.

117919686 is a wasteful number, since it uses less digits than its factorization.

117919686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19653286.

The product of its digits is 163296, while the sum is 48.

The square root of 117919686 is about 10859.0831104656. The cubic root of 117919686 is about 490.3755083541.

The spelling of 117919686 in words is "one hundred seventeen million, nine hundred nineteen thousand, six hundred eighty-six".