117889886 has 8 divisors (see below), whose sum is σ = 178551984. Its totient is φ = 58372560.

The previous prime is 117889873. The next prime is 117889903. The reversal of 117889886 is 688988711.

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, 285935 + ... + 286346.

It is an arithmetic number, because the mean of its divisors is an integer number (22318998).

Almost surely, 2^117889886 is an apocalyptic number.

117889886 is a deficient number, since it is larger than the sum of its proper divisors (60662098).

117889886 is a wasteful number, since it uses less digits than its factorization.

117889886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572386.

The product of its digits is 1548288, while the sum is 56.

The square root of 117889886 is about 10857.7109005536. The cubic root of 117889886 is about 490.3341965602.

The spelling of 117889886 in words is "one hundred seventeen million, eight hundred eighty-nine thousand, eight hundred eighty-six".