117205688 has 16 divisors (see below), whose sum is σ = 219912000. Its totient is φ = 58562496.

The previous prime is 117205663. The next prime is 117205727. The reversal of 117205688 is 886502711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9908 + ... + 18236.

It is an arithmetic number, because the mean of its divisors is an integer number (13744500).

Almost surely, 2^117205688 is an apocalyptic number.

It is an amenable number.

117205688 is a deficient number, since it is larger than the sum of its proper divisors (102706312).

117205688 is a wasteful number, since it uses less digits than its factorization.

117205688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094 (or 10090 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 117205688 is about 10826.1575824482. The cubic root of 117205688 is about 489.3837706765.

The spelling of 117205688 in words is "one hundred seventeen million, two hundred five thousand, six hundred eighty-eight".