12829621 has 12 divisors (see below), whose sum is σ = 15069888. Its totient is φ = 10889592.

The previous prime is 12829601. The next prime is 12829643. The reversal of 12829621 is 12692821.

12829621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12829621 - 2⁷ = 12829493 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 (12829601) 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 11 ways as a sum of consecutive naturals, for example, 4020 + ... + 6466.

It is an arithmetic number, because the mean of its divisors is an integer number (1255824).

Almost surely, 2^12829621 is an apocalyptic number.

It is an amenable number.

12829621 is a deficient number, since it is larger than the sum of its proper divisors (2240267).

12829621 is a wasteful number, since it uses less digits than its factorization.

12829621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568 (or 2561 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 12829621 is about 3581.8460324252. The cubic root of 12829621 is about 234.1017223990.

The spelling of 12829621 in words is "twelve million, eight hundred twenty-nine thousand, six hundred twenty-one".