117288928 has 12 divisors (see below), whose sum is σ = 230912640. Its totient is φ = 58644448.

The previous prime is 117288887. The next prime is 117288929. The reversal of 117288928 is 829882711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117288929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832608 + ... + 1832671.

It is an arithmetic number, because the mean of its divisors is an integer number (19242720).

Almost surely, 2^117288928 is an apocalyptic number.

It is an amenable number.

117288928 is a deficient number, since it is larger than the sum of its proper divisors (113623712).

117288928 is an equidigital number, since it uses as much as digits as its factorization.

117288928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665289 (or 3665281 counting only the distinct ones).

The product of its digits is 129024, while the sum is 46.

The square root of 117288928 is about 10830.0012927054. The cubic root of 117288928 is about 489.4995974362.

It can be divided in two parts, 1172 and 88928, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 117288928 in words is "one hundred seventeen million, two hundred eighty-eight thousand, nine hundred twenty-eight".