84445086 has 64 divisors (see below), whose sum is σ = 197945856. Its totient is φ = 23731200.

The previous prime is 84445079. The next prime is 84445091. The reversal of 84445086 is 68054448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81391 + ... + 82421.

It is an arithmetic number, because the mean of its divisors is an integer number (3092904).

Almost surely, 2^84445086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84445086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98972928).

84445086 is an abundant number, since it is smaller than the sum of its proper divisors (113500770).

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

84445086 is a wasteful number, since it uses less digits than its factorization.

84445086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 84445086 is about 9189.4007421594. The cubic root of 84445086 is about 438.7240687266.

It can be divided in two parts, 8444 and 5086, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 84445086 in words is "eighty-four million, four hundred forty-five thousand, eighty-six".