24947009 has 4 divisors (see below), whose sum is σ = 25527216. Its totient is φ = 24366804.

The previous prime is 24947003. The next prime is 24947017. The reversal of 24947009 is 90074942.

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 24947009 - 2⁴ = 24946993 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 24947009.

It is not an unprimeable number, because it can be changed into a prime (24947003) 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, 290039 + ... + 290124.

It is an arithmetic number, because the mean of its divisors is an integer number (6381804).

Almost surely, 2^24947009 is an apocalyptic number.

It is an amenable number.

24947009 is a deficient number, since it is larger than the sum of its proper divisors (580207).

24947009 is an equidigital number, since it uses as much as digits as its factorization.

24947009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580206.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 24947009 is about 4994.6980889739. The cubic root of 24947009 is about 292.1950321812.

The spelling of 24947009 in words is "twenty-four million, nine hundred forty-seven thousand, nine".