84022500 has 120 divisors (see below), whose sum is σ = 259791840. Its totient is φ = 21056000.

The previous prime is 84022487. The next prime is 84022507. The reversal of 84022500 is 522048.

It is not an unprimeable number, because it can be changed into a prime (84022507) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 127171 + ... + 127829.

It is an arithmetic number, because the mean of its divisors is an integer number (2164932).

Almost surely, 2^84022500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84022500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129895920).

84022500 is an abundant number, since it is smaller than the sum of its proper divisors (175769340).

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

84022500 is a wasteful number, since it uses less digits than its factorization.

84022500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 84022500 is about 9166.3787833582. The cubic root of 84022500 is about 437.9910133474.

Adding to 84022500 its reverse (522048), we get a palindrome (84544548).

The spelling of 84022500 in words is "eighty-four million, twenty-two thousand, five hundred".