24870013 has 4 divisors (see below), whose sum is σ = 28422880. Its totient is φ = 21317148.

The previous prime is 24870011. The next prime is 24870017. The reversal of 24870013 is 31007842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24870013 - 2¹ = 24870011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24870013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24870011) 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, 1776423 + ... + 1776436.

It is an arithmetic number, because the mean of its divisors is an integer number (7105720).

Almost surely, 2^24870013 is an apocalyptic number.

It is an amenable number.

24870013 is a deficient number, since it is larger than the sum of its proper divisors (3552867).

24870013 is an equidigital number, since it uses as much as digits as its factorization.

24870013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552866.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 24870013 is about 4986.9843593097. The cubic root of 24870013 is about 291.8941138878.

Adding to 24870013 its reverse (31007842), we get a palindrome (55877855).

The spelling of 24870013 in words is "twenty-four million, eight hundred seventy thousand, thirteen".