84431112 has 32 divisors (see below), whose sum is σ = 223495200. Its totient is φ = 26488064.

The previous prime is 84431111. The next prime is 84431119. The reversal of 84431112 is 21113448.

It is a super-2 number, since 2×84431112² = 14257225347113088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (84431111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103062 + ... + 103877.

It is an arithmetic number, because the mean of its divisors is an integer number (6984225).

Almost surely, 2^84431112 is an apocalyptic number.

It is an amenable number.

84431112 is an abundant number, since it is smaller than the sum of its proper divisors (139064088).

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

84431112 is a wasteful number, since it uses less digits than its factorization.

84431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206965 (or 206961 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 84431112 is about 9188.6403782061. The cubic root of 84431112 is about 438.6998673249.

The spelling of 84431112 in words is "eighty-four million, four hundred thirty-one thousand, one hundred twelve".