117289388 has 12 divisors (see below), whose sum is σ = 205353792. Its totient is φ = 58616880.

The previous prime is 117289363. The next prime is 117289391. The reversal of 117289388 is 883982711.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4706 + ... + 16022.

It is an arithmetic number, because the mean of its divisors is an integer number (17112816).

Almost surely, 2^117289388 is an apocalyptic number.

It is an amenable number.

117289388 is a deficient number, since it is larger than the sum of its proper divisors (88064404).

117289388 is a wasteful number, since it uses less digits than its factorization.

117289388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13912 (or 13910 counting only the distinct ones).

The product of its digits is 193536, while the sum is 47.

The square root of 117289388 is about 10830.0225299858. The cubic root of 117289388 is about 489.5002373645.

The spelling of 117289388 in words is "one hundred seventeen million, two hundred eighty-nine thousand, three hundred eighty-eight".