84143448 has 80 divisors (see below), whose sum is σ = 238491000. Its totient is φ = 27713664.

The previous prime is 84143443. The next prime is 84143467. The reversal of 84143448 is 84434148.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84143443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56943 + ... + 58401.

Almost surely, 2^84143448 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 84143448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119245500).

84143448 is an abundant number, since it is smaller than the sum of its proper divisors (154347552).

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

84143448 is a wasteful number, since it uses less digits than its factorization.

84143448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1553 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 84143448 is about 9172.9737817133. The cubic root of 84143448 is about 438.2010711262.

The spelling of 84143448 in words is "eighty-four million, one hundred forty-three thousand, four hundred forty-eight".