12625989 has 8 divisors (see below), whose sum is σ = 16890720. Its totient is φ = 8389296.

The previous prime is 12625981. The next prime is 12625993. The reversal of 12625989 is 98952621.

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

It is not a de Polignac number, because 12625989 - 2³ = 12625981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12625989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5934 + ... + 7775.

It is an arithmetic number, because the mean of its divisors is an integer number (2111340).

Almost surely, 2^12625989 is an apocalyptic number.

It is an amenable number.

12625989 is a deficient number, since it is larger than the sum of its proper divisors (4264731).

12625989 is a wasteful number, since it uses less digits than its factorization.

12625989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14019.

The product of its digits is 77760, while the sum is 42.

The square root of 12625989 is about 3553.3067697569. The cubic root of 12625989 is about 232.8565554722.

The spelling of 12625989 in words is "twelve million, six hundred twenty-five thousand, nine hundred eighty-nine".