12572989 has 12 divisors (see below), whose sum is σ = 14884828. Its totient is φ = 10549440.

The previous prime is 12572977. The next prime is 12572993. The reversal of 12572989 is 98927521.

It can be written as a sum of positive squares in 2 ways, for example, as 1464100 + 11108889 = 1210^2 + 3333^2 .

It is not a de Polignac number, because 12572989 - 2⁹ = 12572477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12572909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2424 + ... + 5569.

Almost surely, 2^12572989 is an apocalyptic number.

It is an amenable number.

12572989 is a deficient number, since it is larger than the sum of its proper divisors (2311839).

12572989 is a wasteful number, since it uses less digits than its factorization.

12572989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028 (or 8017 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 12572989 is about 3545.8410849896. The cubic root of 12572989 is about 232.5302785556.

The spelling of 12572989 in words is "twelve million, five hundred seventy-two thousand, nine hundred eighty-nine".