84426 has 8 divisors (see below), whose sum is σ = 168864. Its totient is φ = 28140.

The previous prime is 84421. The next prime is 84431. The reversal of 84426 is 62448.

84426 is nontrivially palindromic in base 5.

It is an interprime number because it is at equal distance from previous prime (84421) and next prime (84431).

It is a sphenic number, since it is the product of 3 distinct primes.

84426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 84396 and 84405.

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

84426 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7030 + ... + 7041.

It is an arithmetic number, because the mean of its divisors is an integer number (21108).

2⁸⁴⁴²⁶ is an apocalyptic number.

84426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84432).

84426 is a wasteful number, since it uses less digits than its factorization.

84426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14076.

The product of its digits is 1536, while the sum is 24.

The square root of 84426 is about 290.5615253264. The cubic root of 84426 is about 43.8691013247.

It can be divided in two parts, 8442 and 6, that added together give a palindrome (8448).

The spelling of 84426 in words is "eighty-four thousand, four hundred twenty-six".