84205284 has 24 divisors (see below), whose sum is σ = 208037088. Its totient is φ = 26417280.

The previous prime is 84205273. The next prime is 84205291. The reversal of 84205284 is 48250248.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206182 + ... + 206589.

It is an arithmetic number, because the mean of its divisors is an integer number (8668212).

Almost surely, 2^84205284 is an apocalyptic number.

It is an amenable number.

84205284 is an abundant number, since it is smaller than the sum of its proper divisors (123831804).

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

84205284 is a wasteful number, since it uses less digits than its factorization.

84205284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412795 (or 412793 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 84205284 is about 9176.3437163175. The cubic root of 84205284 is about 438.3083877271.

The spelling of 84205284 in words is "eighty-four million, two hundred five thousand, two hundred eighty-four".