839423 has 6 divisors (see below), whose sum is σ = 909144. Its totient is φ = 774696.

The previous prime is 839413. The next prime is 839429. The reversal of 839423 is 324938.

It is not a de Polignac number, because 839423 - 2¹⁰ = 838399 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839429) 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, 2315 + ... + 2652.

It is an arithmetic number, because the mean of its divisors is an integer number (151524).

2⁸³⁹⁴²³ is an apocalyptic number.

839423 is a deficient number, since it is larger than the sum of its proper divisors (69721).

839423 is a wasteful number, since it uses less digits than its factorization.

839423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993 (or 4980 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 839423 is about 916.2003056101. The cubic root of 839423 is about 94.3322706147.

The spelling of 839423 in words is "eight hundred thirty-nine thousand, four hundred twenty-three".