24997889 has 12 divisors (see below), whose sum is σ = 29242368. Its totient is φ = 21306600.

The previous prime is 24997867. The next prime is 24997909. The reversal of 24997889 is 98879942.

It is a happy number.

It is not a de Polignac number, because 24997889 - 2²⁰ = 23949313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24997859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8024 + ... + 10694.

It is an arithmetic number, because the mean of its divisors is an integer number (2436864).

Almost surely, 2^24997889 is an apocalyptic number.

It is an amenable number.

24997889 is a deficient number, since it is larger than the sum of its proper divisors (4244479).

24997889 is a wasteful number, since it uses less digits than its factorization.

24997889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2869 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 24997889 is about 4999.7888955435. The cubic root of 24997889 is about 292.3935434544.

The spelling of 24997889 in words is "twenty-four million, nine hundred ninety-seven thousand, eight hundred eighty-nine".