12922389 has 16 divisors (see below), whose sum is σ = 19977600. Its totient is φ = 8239968.

The previous prime is 12922373. The next prime is 12922409. The reversal of 12922389 is 98322921.

It is not a de Polignac number, because 12922389 - 2⁴ = 12922373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9784 + ... + 11025.

It is an arithmetic number, because the mean of its divisors is an integer number (1248600).

Almost surely, 2^12922389 is an apocalyptic number.

It is an amenable number.

12922389 is a deficient number, since it is larger than the sum of its proper divisors (7055211).

12922389 is a wasteful number, since it uses less digits than its factorization.

12922389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20841 (or 20835 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12922389 is about 3594.7724545512. The cubic root of 12922389 is about 234.6646128633.

The spelling of 12922389 in words is "twelve million, nine hundred twenty-two thousand, three hundred eighty-nine".