12829639 has 8 divisors (see below), whose sum is σ = 13277808. Its totient is φ = 12386880.

The previous prime is 12829601. The next prime is 12829643. The reversal of 12829639 is 93692821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12829639 - 2¹⁵ = 12796871 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12829669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3804 + ... + 6334.

It is an arithmetic number, because the mean of its divisors is an integer number (1659726).

Almost surely, 2^12829639 is an apocalyptic number.

12829639 is a deficient number, since it is larger than the sum of its proper divisors (448169).

12829639 is a wasteful number, since it uses less digits than its factorization.

12829639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705.

The product of its digits is 46656, while the sum is 40.

The square root of 12829639 is about 3581.8485450951. The cubic root of 12829639 is about 234.1018318808.

The spelling of 12829639 in words is "twelve million, eight hundred twenty-nine thousand, six hundred thirty-nine".