12834021 has 8 divisors (see below), whose sum is σ = 17161920. Its totient is φ = 8531072.

The previous prime is 12834013. The next prime is 12834047. The reversal of 12834021 is 12043821.

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 12834021 - 2³ = 12834013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12834001) 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, 5001 + ... + 7118.

It is an arithmetic number, because the mean of its divisors is an integer number (2145240).

Almost surely, 2^12834021 is an apocalyptic number.

It is an amenable number.

12834021 is a deficient number, since it is larger than the sum of its proper divisors (4327899).

12834021 is a wasteful number, since it uses less digits than its factorization.

12834021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12475.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12834021 is about 3582.4601881947. The cubic root of 12834021 is about 234.1284815643.

Adding to 12834021 its reverse (12043821), we get a palindrome (24877842).

The spelling of 12834021 in words is "twelve million, eight hundred thirty-four thousand, twenty-one".