84308928 has 168 divisors, whose sum is σ = 259445760. Its totient is φ = 24076800.

The previous prime is 84308897. The next prime is 84308957. The reversal of 84308928 is 82980348.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 84308928.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 441313 + ... + 441503.

It is an arithmetic number, because the mean of its divisors is an integer number (1544320).

Almost surely, 2^84308928 is an apocalyptic number.

84308928 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84308928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129722880).

84308928 is an abundant number, since it is smaller than the sum of its proper divisors (175136832).

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

84308928 is a wasteful number, since it uses less digits than its factorization.

84308928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 84308928 is about 9181.9893269378. The cubic root of 84308928 is about 438.4881444944.

The spelling of 84308928 in words is "eighty-four million, three hundred eight thousand, nine hundred twenty-eight".