117939599 has 4 divisors (see below), whose sum is σ = 117961320. Its totient is φ = 117917880.

The previous prime is 117939581. The next prime is 117939611. The reversal of 117939599 is 995939711.

It is a happy number.

It is a Cunningham number, because it is equal to 10860²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117939599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117939599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117939509) 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, 5429 + ... + 16289.

It is an arithmetic number, because the mean of its divisors is an integer number (29490330).

Almost surely, 2^117939599 is an apocalyptic number.

117939599 is a deficient number, since it is larger than the sum of its proper divisors (21721).

117939599 is a wasteful number, since it uses less digits than its factorization.

117939599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21720.

The product of its digits is 688905, while the sum is 53.

The square root of 117939599 is about 10859.9999539595. Note that the first 4 decimals coincide. The cubic root of 117939599 is about 490.4031099029.

The spelling of 117939599 in words is "one hundred seventeen million, nine hundred thirty-nine thousand, five hundred ninety-nine".