12832639 has 4 divisors (see below), whose sum is σ = 12848056. Its totient is φ = 12817224.

The previous prime is 12832607. The next prime is 12832649. The reversal of 12832639 is 93623821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12832639 - 2⁵ = 12832607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12832649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6384 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (3212014).

Almost surely, 2^12832639 is an apocalyptic number.

12832639 is a deficient number, since it is larger than the sum of its proper divisors (15417).

12832639 is an equidigital number, since it uses as much as digits as its factorization.

12832639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15416.

The product of its digits is 15552, while the sum is 34.

The square root of 12832639 is about 3582.2672987928. The cubic root of 12832639 is about 234.1200774127.

The spelling of 12832639 in words is "twelve million, eight hundred thirty-two thousand, six hundred thirty-nine".