24839 has 4 divisors (see below), whose sum is σ = 25320. Its totient is φ = 24360.

The previous prime is 24821. The next prime is 24841. The reversal of 24839 is 93842.

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 24839 - 2¹² = 20743 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24809) 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, 152 + ... + 269.

It is an arithmetic number, because the mean of its divisors is an integer number (6330).

2²⁴⁸³⁹ is an apocalyptic number.

24839 is a deficient number, since it is larger than the sum of its proper divisors (481).

24839 is an equidigital number, since it uses as much as digits as its factorization.

24839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its digits is 1728, while the sum is 26.

The square root of 24839 is about 157.6039339611. The cubic root of 24839 is about 29.1772732399.

The spelling of 24839 in words is "twenty-four thousand, eight hundred thirty-nine".