117831982 has 8 divisors (see below), whose sum is σ = 177194376. Its totient is φ = 58767192.

The previous prime is 117831979. The next prime is 117831983. The reversal of 117831982 is 289138711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117831983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73408 + ... + 74995.

It is an arithmetic number, because the mean of its divisors is an integer number (22149297).

Almost surely, 2^117831982 is an apocalyptic number.

117831982 is a deficient number, since it is larger than the sum of its proper divisors (59362394).

117831982 is a wasteful number, since it uses less digits than its factorization.

117831982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148802.

The product of its digits is 24192, while the sum is 40.

The square root of 117831982 is about 10855.0440809791. The cubic root of 117831982 is about 490.2539042296.

The spelling of 117831982 in words is "one hundred seventeen million, eight hundred thirty-one thousand, nine hundred eighty-two".