12397825 has 12 divisors (see below), whose sum is σ = 16771248. Its totient is φ = 9016400.

The previous prime is 12397817. The next prime is 12397829. The reversal of 12397825 is 52879321.

It is not a de Polignac number, because 12397825 - 2³ = 12397817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12397829) 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 11 ways as a sum of consecutive naturals, for example, 22267 + ... + 22816.

It is an arithmetic number, because the mean of its divisors is an integer number (1397604).

Almost surely, 2^12397825 is an apocalyptic number.

It is an amenable number.

12397825 is a deficient number, since it is larger than the sum of its proper divisors (4373423).

12397825 is a wasteful number, since it uses less digits than its factorization.

12397825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45104 (or 45099 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 12397825 is about 3521.0545295408. The cubic root of 12397825 is about 231.4453717817.

The spelling of 12397825 in words is "twelve million, three hundred ninety-seven thousand, eight hundred twenty-five".