117285756 has 24 divisors (see below), whose sum is σ = 312762240. Its totient is φ = 33510192.

The previous prime is 117285743. The next prime is 117285757. The reversal of 117285756 is 657582711.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117285757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698046 + ... + 698213.

It is an arithmetic number, because the mean of its divisors is an integer number (13031760).

Almost surely, 2^117285756 is an apocalyptic number.

It is an amenable number.

117285756 is an abundant number, since it is smaller than the sum of its proper divisors (195476484).

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

117285756 is a wasteful number, since it uses less digits than its factorization.

117285756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396273 (or 1396271 counting only the distinct ones).

The product of its digits is 117600, while the sum is 42.

The square root of 117285756 is about 10829.8548466727. The cubic root of 117285756 is about 489.4951846675.

The spelling of 117285756 in words is "one hundred seventeen million, two hundred eighty-five thousand, seven hundred fifty-six".