117843830 has 32 divisors (see below), whose sum is σ = 241877664. Its totient is φ = 40951296.

The previous prime is 117843829. The next prime is 117843839. The reversal of 117843830 is 38348711.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117843839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24452 + ... + 28871.

It is an arithmetic number, because the mean of its divisors is an integer number (7558677).

Almost surely, 2^117843830 is an apocalyptic number.

117843830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117843830 is an abundant number, since it is smaller than the sum of its proper divisors (124033834).

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

117843830 is a wasteful number, since it uses less digits than its factorization.

117843830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53360.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 117843830 is about 10855.5898043358. The cubic root of 117843830 is about 490.2703353476.

The spelling of 117843830 in words is "one hundred seventeen million, eight hundred forty-three thousand, eight hundred thirty".