84431118 has 8 divisors (see below), whose sum is σ = 168862248. Its totient is φ = 28143704.

The previous prime is 84431111. The next prime is 84431119. The reversal of 84431118 is 81113448.

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

84431118 is an admirable number.

It is a super-2 number, since 2×84431118² = 14257227373459848, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84431111) 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, 7035921 + ... + 7035932.

It is an arithmetic number, because the mean of its divisors is an integer number (21107781).

Almost surely, 2^84431118 is an apocalyptic number.

84431118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

84431118 is a wasteful number, since it uses less digits than its factorization.

84431118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14071858.

The product of its digits is 3072, while the sum is 30.

The square root of 84431118 is about 9188.6407046962. The cubic root of 84431118 is about 438.6998777168.

The spelling of 84431118 in words is "eighty-four million, four hundred thirty-one thousand, one hundred eighteen".