84406 has 8 divisors (see below), whose sum is σ = 144720. Its totient is φ = 36168.

The previous prime is 84401. The next prime is 84407. The reversal of 84406 is 60448.

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

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84401) by changing a digit.

84406 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, 3001 + ... + 3028.

It is an arithmetic number, because the mean of its divisors is an integer number (18090).

2⁸⁴⁴⁰⁶ is an apocalyptic number.

84406 is a deficient number, since it is larger than the sum of its proper divisors (60314).

84406 is a wasteful number, since it uses less digits than its factorization.

84406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6038.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 84406 is about 290.5271071690. The cubic root of 84406 is about 43.8656369444.

Subtracting from 84406 its product of nonzero digits (768), we obtain a palindrome (83638).

The spelling of 84406 in words is "eighty-four thousand, four hundred six".