12982389 has 16 divisors (see below), whose sum is σ = 20080128. Its totient is φ = 7306992.

The previous prime is 12982381. The next prime is 12982427. The reversal of 12982389 is 98328921.

12982389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12982389 - 2³ = 12982381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12982389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12982381) 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, 3207 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (1255008).

Almost surely, 2^12982389 is an apocalyptic number.

It is an amenable number.

12982389 is a deficient number, since it is larger than the sum of its proper divisors (7097739).

12982389 is an equidigital number, since it uses as much as digits as its factorization.

12982389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304.

The product of its digits is 62208, while the sum is 42.

The square root of 12982389 is about 3603.1082415048. The cubic root of 12982389 is about 235.0272429561.

The spelling of 12982389 in words is "twelve million, nine hundred eighty-two thousand, three hundred eighty-nine".