12597949 has 12 divisors (see below), whose sum is σ = 15782844. Its totient is φ = 9967104.

The previous prime is 12597917. The next prime is 12597961. The reversal of 12597949 is 94979521.

It is a happy number.

12597949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3705625 + 8892324 = 1925^2 + 2982^2 .

It is not a de Polignac number, because 12597949 - 2⁵ = 12597917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12597899 and 12597908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12597349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9252 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (1315237).

Almost surely, 2^12597949 is an apocalyptic number.

It is an amenable number.

12597949 is a deficient number, since it is larger than the sum of its proper divisors (3184895).

12597949 is a wasteful number, since it uses less digits than its factorization.

12597949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19804 (or 19797 counting only the distinct ones).

The product of its digits is 204120, while the sum is 46.

The square root of 12597949 is about 3549.3589562060. The cubic root of 12597949 is about 232.6840505106.

The spelling of 12597949 in words is "twelve million, five hundred ninety-seven thousand, nine hundred forty-nine".