12989571 has 16 divisors (see below), whose sum is σ = 19852800. Its totient is φ = 7400448.

The previous prime is 12989563. The next prime is 12989591. The reversal of 12989571 is 17598921.

It is not a de Polignac number, because 12989571 - 2³ = 12989563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12989591) 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, 8515 + ... + 9923.

It is an arithmetic number, because the mean of its divisors is an integer number (1240800).

Almost surely, 2^12989571 is an apocalyptic number.

12989571 is a deficient number, since it is larger than the sum of its proper divisors (6863229).

12989571 is a wasteful number, since it uses less digits than its factorization.

12989571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858.

The product of its digits is 45360, while the sum is 42.

The square root of 12989571 is about 3604.1047432060. The cubic root of 12989571 is about 235.0705748494.

The spelling of 12989571 in words is "twelve million, nine hundred eighty-nine thousand, five hundred seventy-one".