12989641 has 8 divisors (see below), whose sum is σ = 15490944. Its totient is φ = 10649760.

The previous prime is 12989629. The next prime is 12989653. The reversal of 12989641 is 14698921.

It is an interprime number because it is at equal distance from previous prime (12989629) and next prime (12989653).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12989641 - 2¹¹ = 12987593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12989594 and 12989603.

It is not an unprimeable number, because it can be changed into a prime (12989681) 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 7 ways as a sum of consecutive naturals, for example, 40180 + ... + 40501.

It is an arithmetic number, because the mean of its divisors is an integer number (1936368).

Almost surely, 2^12989641 is an apocalyptic number.

It is an amenable number.

12989641 is a deficient number, since it is larger than the sum of its proper divisors (2501303).

12989641 is an equidigital number, since it uses as much as digits as its factorization.

12989641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80711.

The product of its digits is 31104, while the sum is 40.

The square root of 12989641 is about 3604.1144543424. The cubic root of 12989641 is about 235.0709971090.

The spelling of 12989641 in words is "twelve million, nine hundred eighty-nine thousand, six hundred forty-one".