24898009 has 4 divisors (see below), whose sum is σ = 24969700. Its totient is φ = 24826320.

The previous prime is 24897973. The next prime is 24898021. The reversal of 24898009 is 90089842.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90089842 = 2 ⋅45044921.

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 14478025 = 3228^2 + 3805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24898009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24898039) 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, 35322 + ... + 36019.

It is an arithmetic number, because the mean of its divisors is an integer number (6242425).

Almost surely, 2^24898009 is an apocalyptic number.

It is an amenable number.

24898009 is a deficient number, since it is larger than the sum of its proper divisors (71691).

24898009 is an equidigital number, since it uses as much as digits as its factorization.

24898009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71690.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 24898009 is about 4989.7904765631. The cubic root of 24898009 is about 292.0036005373.

The spelling of 24898009 in words is "twenty-four million, eight hundred ninety-eight thousand, nine".