339823 has 4 divisors (see below), whose sum is σ = 370728. Its totient is φ = 308920.

The previous prime is 339821. The next prime is 339827. The reversal of 339823 is 328933.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 339823 - 2¹ = 339821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 339791 and 339800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15436 + ... + 15457.

It is an arithmetic number, because the mean of its divisors is an integer number (92682).

2³³⁹⁸²³ is an apocalyptic number.

339823 is a deficient number, since it is larger than the sum of its proper divisors (30905).

339823 is a wasteful number, since it uses less digits than its factorization.

339823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30904.

The product of its digits is 3888, while the sum is 28.

The square root of 339823 is about 582.9433934783. The cubic root of 339823 is about 69.7832068259.

The spelling of 339823 in words is "three hundred thirty-nine thousand, eight hundred twenty-three".