12787448 has 16 divisors (see below), whose sum is σ = 25019280. Its totient is φ = 6115648.

The previous prime is 12787447. The next prime is 12787499. The reversal of 12787448 is 84478721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787441) 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, 34565 + ... + 34932.

It is an arithmetic number, because the mean of its divisors is an integer number (1563705).

Almost surely, 2^12787448 is an apocalyptic number.

It is an amenable number.

12787448 is a deficient number, since it is larger than the sum of its proper divisors (12231832).

12787448 is a wasteful number, since it uses less digits than its factorization.

12787448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69526 (or 69522 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 12787448 is about 3575.9541384084. The cubic root of 12787448 is about 233.8449309857.

The spelling of 12787448 in words is "twelve million, seven hundred eighty-seven thousand, four hundred forty-eight".