84422 has 16 divisors (see below), whose sum is σ = 145152. Its totient is φ = 36480.

The previous prime is 84421. The next prime is 84431. The reversal of 84422 is 22448.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 84394 and 84403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (9072).

2⁸⁴⁴²² is an apocalyptic number.

84422 is a deficient number, since it is larger than the sum of its proper divisors (60730).

84422 is a wasteful number, since it uses less digits than its factorization.

84422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its digits is 512, while the sum is 20.

The square root of 84422 is about 290.5546420211. The cubic root of 84422 is about 43.8684084924.

The spelling of 84422 in words is "eighty-four thousand, four hundred twenty-two".