84143808 has 168 divisors, whose sum is σ = 282915360. Its totient is φ = 23408640.

The previous prime is 84143803. The next prime is 84143833. The reversal of 84143808 is 80834148.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (84143803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165058 + ... + 165566.

It is an arithmetic number, because the mean of its divisors is an integer number (1684020).

Almost surely, 2^84143808 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 84143808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141457680).

84143808 is an abundant number, since it is smaller than the sum of its proper divisors (198771552).

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

84143808 is a wasteful number, since it uses less digits than its factorization.

84143808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 84143808 is about 9172.9934045545. The cubic root of 84143808 is about 438.2016960596.

The spelling of 84143808 in words is "eighty-four million, one hundred forty-three thousand, eight hundred eight".