84222 has 12 divisors (see below), whose sum is σ = 182520. Its totient is φ = 28068.

The previous prime is 84221. The next prime is 84223. The reversal of 84222 is 22248.

It is an interprime number because it is at equal distance from previous prime (84221) and next prime (84223).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 4679 = 84222 / (8 + 4 + 2 + 2 + 2).

It is an Ulam number.

84222 is a modest number, since divided by 222 gives 84 as remainder.

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 84195 and 84204.

It is a congruent number.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2322 + ... + 2357.

It is an arithmetic number, because the mean of its divisors is an integer number (15210).

2⁸⁴²²² is an apocalyptic number.

84222 is an abundant number, since it is smaller than the sum of its proper divisors (98298).

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

84222 is a wasteful number, since it uses less digits than its factorization.

84222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687 (or 4684 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 84222 is about 290.2102685985. The cubic root of 84222 is about 43.8337389384.

The spelling of 84222 in words is "eighty-four thousand, two hundred twenty-two".