84043648 has 64 divisors (see below), whose sum is σ = 190980720. Its totient is φ = 36495360.

The previous prime is 84043639. The next prime is 84043649. The reversal of 84043648 is 84634048.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84043649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26803 + ... + 29773.

Almost surely, 2^84043648 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 84043648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95490360).

84043648 is an abundant number, since it is smaller than the sum of its proper divisors (106937072).

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

84043648 is a wasteful number, since it uses less digits than its factorization.

84043648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 3003 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 84043648 is about 9167.5322742819. The cubic root of 84043648 is about 438.0277569060.

The spelling of 84043648 in words is "eighty-four million, forty-three thousand, six hundred forty-eight".