12787324 has 12 divisors (see below), whose sum is σ = 24412248. Its totient is φ = 5812400.

The previous prime is 12787321. The next prime is 12787331. The reversal of 12787324 is 42378721.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12787324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145267 + ... + 145354.

It is an arithmetic number, because the mean of its divisors is an integer number (2034354).

Almost surely, 2^12787324 is an apocalyptic number.

It is an amenable number.

12787324 is a deficient number, since it is larger than the sum of its proper divisors (11624924).

12787324 is a wasteful number, since it uses less digits than its factorization.

12787324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290636 (or 290634 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 12787324 is about 3575.9368003364. The cubic root of 12787324 is about 233.8441751178.

The spelling of 12787324 in words is "twelve million, seven hundred eighty-seven thousand, three hundred twenty-four".