84423 has 8 divisors (see below), whose sum is σ = 114048. Its totient is φ = 55544.

The previous prime is 84421. The next prime is 84431. The reversal of 84423 is 32448.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84423 - 2¹ = 84421 is a prime.

84423 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 84423.

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, 190 + ... + 452.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2⁸⁴⁴²³ is an apocalyptic number.

84423 is a deficient number, since it is larger than the sum of its proper divisors (29625).

84423 is a wasteful number, since it uses less digits than its factorization.

84423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its digits is 768, while the sum is 21.

The square root of 84423 is about 290.5563628627. The cubic root of 84423 is about 43.8685817025.

The spelling of 84423 in words is "eighty-four thousand, four hundred twenty-three".