12834421 has 4 divisors (see below), whose sum is σ = 12841632. Its totient is φ = 12827212.

The previous prime is 12834407. The next prime is 12834433. The reversal of 12834421 is 12443821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12834421 - 2⁷ = 12834293 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 (12834401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (3210408).

Almost surely, 2^12834421 is an apocalyptic number.

It is an amenable number.

12834421 is a deficient number, since it is larger than the sum of its proper divisors (7211).

12834421 is an equidigital number, since it uses as much as digits as its factorization.

12834421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210.

The product of its digits is 1536, while the sum is 25.

The square root of 12834421 is about 3582.5160153166. The cubic root of 12834421 is about 234.1309139124.

The spelling of 12834421 in words is "twelve million, eight hundred thirty-four thousand, four hundred twenty-one".