12903289 has 16 divisors (see below), whose sum is σ = 16156800. Its totient is φ = 10047744.

The previous prime is 12903287. The next prime is 12903313. The reversal of 12903289 is 98230921.

It is not a de Polignac number, because 12903289 - 2¹ = 12903287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12903281) 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 15 ways as a sum of consecutive naturals, for example, 1582 + ... + 5320.

It is an arithmetic number, because the mean of its divisors is an integer number (1009800).

Almost surely, 2^12903289 is an apocalyptic number.

It is an amenable number.

12903289 is a deficient number, since it is larger than the sum of its proper divisors (3253511).

12903289 is a wasteful number, since it uses less digits than its factorization.

12903289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12903289 is about 3592.1148366944. The cubic root of 12903289 is about 234.5489401297.

The spelling of 12903289 in words is "twelve million, nine hundred three thousand, two hundred eighty-nine".