24894989 has 12 divisors (see below), whose sum is σ = 29395584. Its totient is φ = 21017304.

The previous prime is 24894977. The next prime is 24895009. The reversal of 24894989 is 98949842.

It is not a de Polignac number, because 24894989 - 2²⁰ = 23846413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 24894989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24894689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 509 + ... + 7074.

It is an arithmetic number, because the mean of its divisors is an integer number (2449632).

Almost surely, 2^24894989 is an apocalyptic number.

It is an amenable number.

24894989 is a deficient number, since it is larger than the sum of its proper divisors (4500595).

24894989 is an equidigital number, since it uses as much as digits as its factorization.

24894989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664 (or 7657 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 53.

The square root of 24894989 is about 4989.4878494691. The cubic root of 24894989 is about 291.9917938834.

The spelling of 24894989 in words is "twenty-four million, eight hundred ninety-four thousand, nine hundred eighty-nine".