12928941 has 12 divisors (see below), whose sum is σ = 18886140. Its totient is φ = 8521920.

The previous prime is 12928933. The next prime is 12928969. The reversal of 12928941 is 14982921.

It can be written as a sum of positive squares in 2 ways, for example, as 3802500 + 9126441 = 1950^2 + 3021^2 .

It is not a de Polignac number, because 12928941 - 2³ = 12928933 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12928896 and 12928905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12928141) 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, 7270 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (1573845).

Almost surely, 2^12928941 is an apocalyptic number.

It is an amenable number.

12928941 is a deficient number, since it is larger than the sum of its proper divisors (5957199).

12928941 is a wasteful number, since it uses less digits than its factorization.

12928941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16236 (or 16233 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 12928941 is about 3595.6836623930. The cubic root of 12928941 is about 234.7042665930.

The spelling of 12928941 in words is "twelve million, nine hundred twenty-eight thousand, nine hundred forty-one".