233439 has 4 divisors (see below), whose sum is σ = 311256. Its totient is φ = 155624.

The previous prime is 233437. The next prime is 233477. The reversal of 233439 is 934332.

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 233439 - 2¹ = 233437 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38904 + ... + 38909.

It is an arithmetic number, because the mean of its divisors is an integer number (77814).

2²³³⁴³⁹ is an apocalyptic number.

233439 is a deficient number, since it is larger than the sum of its proper divisors (77817).

233439 is an equidigital number, since it uses as much as digits as its factorization.

233439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77816.

The product of its digits is 1944, while the sum is 24.

The square root of 233439 is about 483.1552545507. The cubic root of 233439 is about 61.5731168184.

It can be divided in two parts, 23 and 3439, that multiplied together give a palindrome (79097).

The spelling of 233439 in words is "two hundred thirty-three thousand, four hundred thirty-nine".