12647648 has 24 divisors (see below), whose sum is σ = 26816328. Its totient is φ = 5837184.

The previous prime is 12647647. The next prime is 12647651. The reversal of 12647648 is 84674621.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14786 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (1117347).

Almost surely, 2^12647648 is an apocalyptic number.

It is an amenable number.

12647648 is an abundant number, since it is smaller than the sum of its proper divisors (14168680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12647648 is a wasteful number, since it uses less digits than its factorization.

12647648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30426 (or 30418 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 12647648 is about 3556.3531883096. The cubic root of 12647648 is about 232.9896291134.

It can be divided in two parts, 126 and 47648, that added together give a palindrome (47774).

The spelling of 12647648 in words is "twelve million, six hundred forty-seven thousand, six hundred forty-eight".