84225 has 12 divisors (see below), whose sum is σ = 139376. Its totient is φ = 44880.

The previous prime is 84223. The next prime is 84229. The reversal of 84225 is 52248.

It is not a de Polignac number, because 84225 - 2¹ = 84223 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487 + ... + 636.

2⁸⁴²²⁵ is an apocalyptic number.

It is an amenable number.

84225 is a deficient number, since it is larger than the sum of its proper divisors (55151).

84225 is a wasteful number, since it uses less digits than its factorization.

84225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1131 counting only the distinct ones).

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

The square root of 84225 is about 290.2154372186. The cubic root of 84225 is about 43.8342593869.

The spelling of 84225 in words is "eighty-four thousand, two hundred twenty-five".