12789824 has 28 divisors (see below), whose sum is σ = 25498044. Its totient is φ = 6365184.

The previous prime is 12789823. The next prime is 12789857. The reversal of 12789824 is 42898721.

It can be written as a sum of positive squares in 2 ways, for example, as 5607424 + 7182400 = 2368^2 + 2680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12789823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21272 + ... + 21864.

Almost surely, 2^12789824 is an apocalyptic number.

It is an amenable number.

12789824 is a deficient number, since it is larger than the sum of its proper divisors (12708220).

12789824 is an equidigital number, since it uses as much as digits as its factorization.

12789824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 932 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 12789824 is about 3576.2863420034. The cubic root of 12789824 is about 233.8594134466.

The spelling of 12789824 in words is "twelve million, seven hundred eighty-nine thousand, eight hundred twenty-four".