84129328 has 40 divisors (see below), whose sum is σ = 176627088. Its totient is φ = 38664192.

The previous prime is 84129323. The next prime is 84129341. The reversal of 84129328 is 82392148.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (84129323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8100 + ... + 15292.

Almost surely, 2^84129328 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 84129328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88313544).

84129328 is an abundant number, since it is smaller than the sum of its proper divisors (92497760).

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

84129328 is a wasteful number, since it uses less digits than its factorization.

84129328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261 (or 7255 counting only the distinct ones).

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

The square root of 84129328 is about 9172.2040971623. The cubic root of 84129328 is about 438.1765584421.

The spelling of 84129328 in words is "eighty-four million, one hundred twenty-nine thousand, three hundred twenty-eight".