12999648 has 48 divisors (see below), whose sum is σ = 35925120. Its totient is φ = 4104576.

The previous prime is 12999641. The next prime is 12999653. The reversal of 12999648 is 84699921.

12999648 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 12999597 and 12999606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^12999648 is an apocalyptic number.

It is an amenable number.

12999648 is an abundant number, since it is smaller than the sum of its proper divisors (22925472).

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

12999648 is a wasteful number, since it uses less digits than its factorization.

12999648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159 (or 7151 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 12999648 is about 3605.5024615163. The cubic root of 12999648 is about 235.1313465226.

The spelling of 12999648 in words is "twelve million, nine hundred ninety-nine thousand, six hundred forty-eight".