117806841 has 6 divisors (see below), whose sum is σ = 170165450. Its totient is φ = 78537888.

The previous prime is 117806833. The next prime is 117806867. The reversal of 117806841 is 148608711.

It can be written as a sum of positive squares in only one way, i.e., 106007616 + 11799225 = 10296^2 + 3435^2 .

It is not a de Polignac number, because 117806841 - 2³ = 117806833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117806796 and 117806805.

It is not an unprimeable number, because it can be changed into a prime (117806891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6544816 + ... + 6544833.

Almost surely, 2^117806841 is an apocalyptic number.

It is an amenable number.

117806841 is a deficient number, since it is larger than the sum of its proper divisors (52358609).

117806841 is a wasteful number, since it uses less digits than its factorization.

117806841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13089655 (or 13089652 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 117806841 is about 10853.8859861342. The cubic root of 117806841 is about 490.2190343811.

The spelling of 117806841 in words is "one hundred seventeen million, eight hundred six thousand, eight hundred forty-one".