12590397 has 20 divisors (see below), whose sum is σ = 19320796. Its totient is φ = 8164800.

The previous prime is 12590329. The next prime is 12590401. The reversal of 12590397 is 79309521.

It can be written as a sum of positive squares in 2 ways, for example, as 5731236 + 6859161 = 2394^2 + 2619^2 .

It is not a de Polignac number, because 12590397 - 2²² = 8396093 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 (12590317) 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 19 ways as a sum of consecutive naturals, for example, 897 + ... + 5097.

Almost surely, 2^12590397 is an apocalyptic number.

It is an amenable number.

12590397 is a deficient number, since it is larger than the sum of its proper divisors (6730399).

12590397 is an equidigital number, since it uses as much as digits as its factorization.

12590397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 12590397 is about 3548.2949426450. The cubic root of 12590397 is about 232.6375460836.

The spelling of 12590397 in words is "twelve million, five hundred ninety thousand, three hundred ninety-seven".