12648279 has 16 divisors (see below), whose sum is σ = 19896320. Its totient is φ = 6994080.

The previous prime is 12648271. The next prime is 12648283. The reversal of 12648279 is 97284621.

It is not a de Polignac number, because 12648279 - 2³ = 12648271 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9064 + ... + 10365.

It is an arithmetic number, because the mean of its divisors is an integer number (1243520).

Almost surely, 2^12648279 is an apocalyptic number.

12648279 is a deficient number, since it is larger than the sum of its proper divisors (7248041).

12648279 is a wasteful number, since it uses less digits than its factorization.

12648279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19470.

The product of its digits is 48384, while the sum is 39.

The square root of 12648279 is about 3556.4419016764. The cubic root of 12648279 is about 232.9935037208.

The spelling of 12648279 in words is "twelve million, six hundred forty-eight thousand, two hundred seventy-nine".