117843867 has 12 divisors (see below), whose sum is σ = 170450280. Its totient is φ = 78455808.

The previous prime is 117843863. The next prime is 117843893. The reversal of 117843867 is 768348711.

It is not a de Polignac number, because 117843867 - 2² = 117843863 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (117843863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593 + ... + 15434.

It is an arithmetic number, because the mean of its divisors is an integer number (14204190).

Almost surely, 2^117843867 is an apocalyptic number.

117843867 is a deficient number, since it is larger than the sum of its proper divisors (52606413).

117843867 is a wasteful number, since it uses less digits than its factorization.

117843867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17802 (or 17799 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 117843867 is about 10855.5915085268. The cubic root of 117843867 is about 490.2703866585.

It can be divided in two parts, 11784 and 3867, that added together give a palindrome (15651).

The spelling of 117843867 in words is "one hundred seventeen million, eight hundred forty-three thousand, eight hundred sixty-seven".