117794881 has 4 divisors (see below), whose sum is σ = 117831892. Its totient is φ = 117757872.

The previous prime is 117794879. The next prime is 117794933. The reversal of 117794881 is 188497711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116316225 + 1478656 = 10785^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 117794881 - 2¹ = 117794879 is a prime.

It is a super-2 number, since 2×117794881² = 27751267979608322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117794821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13230 + ... + 20263.

It is an arithmetic number, because the mean of its divisors is an integer number (29457973).

Almost surely, 2^117794881 is an apocalyptic number.

It is an amenable number.

117794881 is a deficient number, since it is larger than the sum of its proper divisors (37011).

117794881 is an equidigital number, since it uses as much as digits as its factorization.

117794881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37010.

The product of its digits is 112896, while the sum is 46.

The square root of 117794881 is about 10853.3350174036. The cubic root of 117794881 is about 490.2024444614.

The spelling of 117794881 in words is "one hundred seventeen million, seven hundred ninety-four thousand, eight hundred eighty-one".