12928441 has 4 divisors (see below), whose sum is σ = 12936484. Its totient is φ = 12920400.

The previous prime is 12928439. The next prime is 12928459. The reversal of 12928441 is 14482921.

12928441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10106041 + 2822400 = 3179^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 12928441 - 2¹ = 12928439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12928481) 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, 690 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (3234121).

Almost surely, 2^12928441 is an apocalyptic number.

It is an amenable number.

12928441 is a deficient number, since it is larger than the sum of its proper divisors (8043).

12928441 is an equidigital number, since it uses as much as digits as its factorization.

12928441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042.

The product of its digits is 4608, while the sum is 31.

The square root of 12928441 is about 3595.6141339137. The cubic root of 12928441 is about 234.7012409870.

The spelling of 12928441 in words is "twelve million, nine hundred twenty-eight thousand, four hundred forty-one".