117985198 has 8 divisors (see below), whose sum is σ = 177036408. Its totient is φ = 58973064.

The previous prime is 117985183. The next prime is 117985207. The reversal of 117985198 is 891589711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 436 + ... + 15367.

It is an arithmetic number, because the mean of its divisors is an integer number (22129551).

Almost surely, 2^117985198 is an apocalyptic number.

117985198 is a deficient number, since it is larger than the sum of its proper divisors (59051210).

117985198 is a wasteful number, since it uses less digits than its factorization.

117985198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19538.

The product of its digits is 181440, while the sum is 49.

The square root of 117985198 is about 10862.0991525579. The cubic root of 117985198 is about 490.4663032953.

The spelling of 117985198 in words is "one hundred seventeen million, nine hundred eighty-five thousand, one hundred ninety-eight".