12397588 has 36 divisors (see below), whose sum is σ = 25842432. Its totient is φ = 5186160.

The previous prime is 12397571. The next prime is 12397591. The reversal of 12397588 is 88579321.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

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, 7693 + ... + 9163.

Almost surely, 2^12397588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12397588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12921216).

12397588 is an abundant number, since it is smaller than the sum of its proper divisors (13444844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12397588 is a wasteful number, since it uses less digits than its factorization.

12397588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1523 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 12397588 is about 3521.0208746896. The cubic root of 12397588 is about 231.4438969826.

The spelling of 12397588 in words is "twelve million, three hundred ninety-seven thousand, five hundred eighty-eight".