84128058 has 56 divisors (see below), whose sum is σ = 216256608. Its totient is φ = 24033672.

The previous prime is 84127999. The next prime is 84128059. The reversal of 84128058 is 85082148.

It is a super-3 number, since 3×84128058³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84128059) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6085 + ... + 14327.

Almost surely, 2^84128058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84128058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108128304).

84128058 is an abundant number, since it is smaller than the sum of its proper divisors (132128550).

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

84128058 is an equidigital number, since it uses as much as digits as its factorization.

84128058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270 (or 8255 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 84128058 is about 9172.1348659949. The cubic root of 84128058 is about 438.1743535550.

The spelling of 84128058 in words is "eighty-four million, one hundred twenty-eight thousand, fifty-eight".