117117788 has 6 divisors (see below), whose sum is σ = 204956136. Its totient is φ = 58558892.

The previous prime is 117117787. The next prime is 117117797. The reversal of 117117788 is 887711711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117117787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14639720 + ... + 14639727.

It is an arithmetic number, because the mean of its divisors is an integer number (34159356).

Almost surely, 2^117117788 is an apocalyptic number.

It is an amenable number.

117117788 is a deficient number, since it is larger than the sum of its proper divisors (87838348).

117117788 is a wasteful number, since it uses less digits than its factorization.

117117788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29279451 (or 29279449 counting only the distinct ones).

The product of its digits is 21952, while the sum is 41.

The square root of 117117788 is about 10822.0972089517. The cubic root of 117117788 is about 489.2614000750.

The spelling of 117117788 in words is "one hundred seventeen million, one hundred seventeen thousand, seven hundred eighty-eight".