239443 has 4 divisors (see below), whose sum is σ = 241200. Its totient is φ = 237688.

The previous prime is 239441. The next prime is 239461. The reversal of 239443 is 344932.

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 239443 - 2¹ = 239441 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 3⁷ + 4 + 9⁵ + 4⁵ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (60300).

2²³⁹⁴⁴³ is an apocalyptic number.

239443 is a deficient number, since it is larger than the sum of its proper divisors (1757).

239443 is a wasteful number, since it uses less digits than its factorization.

239443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756.

The product of its digits is 2592, while the sum is 25.

The square root of 239443 is about 489.3291325887. The cubic root of 239443 is about 62.0965370873.

The spelling of 239443 in words is "two hundred thirty-nine thousand, four hundred forty-three".