12882639 has 48 divisors (see below), whose sum is σ = 22588416. Its totient is φ = 6451200.

The previous prime is 12882631. The next prime is 12882643. The reversal of 12882639 is 93628821.

It is a happy number.

12882639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12882639 - 2³ = 12882631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12882597 and 12882606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12882631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49999 + ... + 50255.

It is an arithmetic number, because the mean of its divisors is an integer number (470592).

Almost surely, 2^12882639 is an apocalyptic number.

12882639 is a deficient number, since it is larger than the sum of its proper divisors (9705777).

12882639 is a wasteful number, since it uses less digits than its factorization.

12882639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 309 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 12882639 is about 3589.2393344551. The cubic root of 12882639 is about 234.4237518496.

The spelling of 12882639 in words is "twelve million, eight hundred eighty-two thousand, six hundred thirty-nine".