12648429 has 12 divisors (see below), whose sum is σ = 18433116. Its totient is φ = 8356992.

The previous prime is 12648421. The next prime is 12648431. The reversal of 12648429 is 92484621.

12648429 is a `hidden beast` number, since 1 + 2 + 648 + 4 + 2 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 12320100 = 573^2 + 3510^2 .

It is not a de Polignac number, because 12648429 - 2³ = 12648421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12648393 and 12648402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5202 + ... + 7235.

It is an arithmetic number, because the mean of its divisors is an integer number (1536093).

Almost surely, 2^12648429 is an apocalyptic number.

It is an amenable number.

12648429 is a deficient number, since it is larger than the sum of its proper divisors (5784687).

12648429 is a wasteful number, since it uses less digits than its factorization.

12648429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12556 (or 12553 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12648429 is about 3556.4629901069. The cubic root of 12648429 is about 232.9944247654.

The spelling of 12648429 in words is "twelve million, six hundred forty-eight thousand, four hundred twenty-nine".