12784768 has 16 divisors (see below), whose sum is σ = 25469910. Its totient is φ = 6392320.

The previous prime is 12784747. The next prime is 12784771. The reversal of 12784768 is 86748721.

12784768 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in only one way, i.e., 6594624 + 6190144 = 2568^2 + 2488^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49813 + ... + 50068.

Almost surely, 2^12784768 is an apocalyptic number.

It is an amenable number.

12784768 is a deficient number, since it is larger than the sum of its proper divisors (12685142).

12784768 is an frugal number, since it uses more digits than its factorization.

12784768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99895 (or 99883 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 12784768 is about 3575.5793936088. The cubic root of 12784768 is about 233.8285933969.

The spelling of 12784768 in words is "twelve million, seven hundred eighty-four thousand, seven hundred sixty-eight".