24893139 has 4 divisors (see below), whose sum is σ = 33190856. Its totient is φ = 16595424.

The previous prime is 24893101. The next prime is 24893149. The reversal of 24893139 is 93139842.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 24893139 - 2⁹ = 24892627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24893097 and 24893106.

It is not an unprimeable number, because it can be changed into a prime (24893149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4148854 + ... + 4148859.

It is an arithmetic number, because the mean of its divisors is an integer number (8297714).

Almost surely, 2^24893139 is an apocalyptic number.

24893139 is a deficient number, since it is larger than the sum of its proper divisors (8297717).

24893139 is an equidigital number, since it uses as much as digits as its factorization.

24893139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8297716.

The product of its digits is 46656, while the sum is 39.

The square root of 24893139 is about 4989.3024562558. The cubic root of 24893139 is about 291.9845608588.

The spelling of 24893139 in words is "twenty-four million, eight hundred ninety-three thousand, one hundred thirty-nine".