84086128 has 20 divisors (see below), whose sum is σ = 186190960. Its totient is φ = 36036864.

The previous prime is 84086117. The next prime is 84086141. The reversal of 84086128 is 82168048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375273 + ... + 375496.

It is an arithmetic number, because the mean of its divisors is an integer number (9309548).

Almost surely, 2^84086128 is an apocalyptic number.

It is an amenable number.

84086128 is an abundant number, since it is smaller than the sum of its proper divisors (102104832).

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

84086128 is a wasteful number, since it uses less digits than its factorization.

84086128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750784 (or 750778 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 84086128 is about 9169.8488537162. The cubic root of 84086128 is about 438.1015450918.

It can be divided in two parts, 840861 and 28, that added together give a square (840889 = 917²).

The spelling of 84086128 in words is "eighty-four million, eighty-six thousand, one hundred twenty-eight".