117829782 has 64 divisors (see below), whose sum is σ = 312284160. Its totient is φ = 32199552.

The previous prime is 117829757. The next prime is 117829861. The reversal of 117829782 is 287928711.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1918 + ... + 15470.

It is an arithmetic number, because the mean of its divisors is an integer number (4879440).

Almost surely, 2^117829782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117829782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156142080).

117829782 is an abundant number, since it is smaller than the sum of its proper divisors (194454378).

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

117829782 is a wasteful number, since it uses less digits than its factorization.

117829782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13594 (or 13588 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The square root of 117829782 is about 10854.9427451277. The cubic root of 117829782 is about 490.2508530905.

The spelling of 117829782 in words is "one hundred seventeen million, eight hundred twenty-nine thousand, seven hundred eighty-two".