12989179 has 16 divisors (see below), whose sum is σ = 15769600. Its totient is φ = 10450944.

The previous prime is 12989161. The next prime is 12989189. The reversal of 12989179 is 97198921.

It is a happy number.

It is not a de Polignac number, because 12989179 - 2¹⁹ = 12464891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12989149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16507 + ... + 17275.

It is an arithmetic number, because the mean of its divisors is an integer number (985600).

Almost surely, 2^12989179 is an apocalyptic number.

12989179 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12989179 is a deficient number, since it is larger than the sum of its proper divisors (2780421).

12989179 is a wasteful number, since it uses less digits than its factorization.

12989179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its digits is 81648, while the sum is 46.

The square root of 12989179 is about 3604.0503603585. The cubic root of 12989179 is about 235.0682101680.

The spelling of 12989179 in words is "twelve million, nine hundred eighty-nine thousand, one hundred seventy-nine".