24939 has 12 divisors (see below), whose sum is σ = 38376. Its totient is φ = 15552.

The previous prime is 24923. The next prime is 24943. The reversal of 24939 is 93942.

It is not a de Polignac number, because 24939 - 2⁴ = 24923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (24919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72 + ... + 234.

It is an arithmetic number, because the mean of its divisors is an integer number (3198).

2²⁴⁹³⁹ is an apocalyptic number.

24939 is a deficient number, since it is larger than the sum of its proper divisors (13437).

24939 is a wasteful number, since it uses less digits than its factorization.

24939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 183 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 24939 is about 157.9208662590. The cubic root of 24939 is about 29.2163760022.

The spelling of 24939 in words is "twenty-four thousand, nine hundred thirty-nine".