4239323 has 4 divisors (see below), whose sum is σ = 4624728. Its totient is φ = 3853920.

The previous prime is 4239293. The next prime is 4239331. The reversal of 4239323 is 3239324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4239323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4239292 and 4239301.

It is not an unprimeable number, because it can be changed into a prime (4239373) 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, 192686 + ... + 192707.

It is an arithmetic number, because the mean of its divisors is an integer number (1156182).

Almost surely, 2^4239323 is an apocalyptic number.

4239323 is a deficient number, since it is larger than the sum of its proper divisors (385405).

4239323 is a wasteful number, since it uses less digits than its factorization.

4239323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385404.

The product of its digits is 3888, while the sum is 26.

The square root of 4239323 is about 2058.9616315026. The cubic root of 4239323 is about 161.8448318630.

Subtracting from 4239323 its reverse (3239324), we obtain a palindrome (999999).

The spelling of 4239323 in words is "four million, two hundred thirty-nine thousand, three hundred twenty-three".