117889988 has 24 divisors (see below), whose sum is σ = 214536000. Its totient is φ = 56615328.

The previous prime is 117889979. The next prime is 117889991. The reversal of 117889988 is 889988711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20531 + ... + 25637.

It is an arithmetic number, because the mean of its divisors is an integer number (8939000).

Almost surely, 2^117889988 is an apocalyptic number.

It is an amenable number.

117889988 is a deficient number, since it is larger than the sum of its proper divisors (96646012).

117889988 is a wasteful number, since it uses less digits than its factorization.

117889988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339 (or 5337 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 59.

The square root of 117889988 is about 10857.7155976752. The cubic root of 117889988 is about 490.3343379748.

The spelling of 117889988 in words is "one hundred seventeen million, eight hundred eighty-nine thousand, nine hundred eighty-eight".