117838863 has 24 divisors (see below), whose sum is σ = 175184048. Its totient is φ = 76298112.

The previous prime is 117838859. The next prime is 117838873. The reversal of 117838863 is 368838711.

It is not a de Polignac number, because 117838863 - 2² = 117838859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117838873) 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 23 ways as a sum of consecutive naturals, for example, 42681 + ... + 45357.

Almost surely, 2^117838863 is an apocalyptic number.

117838863 is a deficient number, since it is larger than the sum of its proper divisors (57345185).

117838863 is a wasteful number, since it uses less digits than its factorization.

117838863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823 (or 2820 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 117838863 is about 10855.3610257789. The cubic root of 117838863 is about 490.2634471155.

The spelling of 117838863 in words is "one hundred seventeen million, eight hundred thirty-eight thousand, eight hundred sixty-three".