12833621 has 4 divisors (see below), whose sum is σ = 13051200. Its totient is φ = 12616044.

The previous prime is 12833617. The next prime is 12833647. The reversal of 12833621 is 12633821.

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 an emirpimes, since its reverse is a distinct semiprime: 12633821 = 29 ⋅435649.

It is a cyclic number.

It is not a de Polignac number, because 12833621 - 2² = 12833617 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 (12883621) 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 3 ways as a sum of consecutive naturals, for example, 108701 + ... + 108818.

It is an arithmetic number, because the mean of its divisors is an integer number (3262800).

Almost surely, 2^12833621 is an apocalyptic number.

It is an amenable number.

12833621 is a deficient number, since it is larger than the sum of its proper divisors (217579).

12833621 is an equidigital number, since it uses as much as digits as its factorization.

12833621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217578.

The product of its digits is 1728, while the sum is 26.

The square root of 12833621 is about 3582.4043602028. The cubic root of 12833621 is about 234.1260491657.

The spelling of 12833621 in words is "twelve million, eight hundred thirty-three thousand, six hundred twenty-one".