117286928 has 20 divisors (see below), whose sum is σ = 247902288. Its totient is φ = 53312160.

The previous prime is 117286921. The next prime is 117286931. The reversal of 117286928 is 829682711.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (117286921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333026 + ... + 333377.

Almost surely, 2^117286928 is an apocalyptic number.

It is an amenable number.

117286928 is an abundant number, since it is smaller than the sum of its proper divisors (130615360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117286928 is a wasteful number, since it uses less digits than its factorization.

117286928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666422 (or 666416 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 117286928 is about 10829.9089562193. The cubic root of 117286928 is about 489.4968151197.

The spelling of 117286928 in words is "one hundred seventeen million, two hundred eighty-six thousand, nine hundred twenty-eight".