84183904 has 72 divisors (see below), whose sum is σ = 194476464. Its totient is φ = 35136000.

The previous prime is 84183893. The next prime is 84183907. The reversal of 84183904 is 40938148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84183907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833454 + ... + 833554.

It is an arithmetic number, because the mean of its divisors is an integer number (2701062).

Almost surely, 2^84183904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84183904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97238232).

84183904 is an abundant number, since it is smaller than the sum of its proper divisors (110292560).

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

84183904 is a wasteful number, since it uses less digits than its factorization.

84183904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 84183904 is about 9175.1786903580. The cubic root of 84183904 is about 438.2712886041.

The spelling of 84183904 in words is "eighty-four million, one hundred eighty-three thousand, nine hundred four".