12387297 has 32 divisors (see below), whose sum is σ = 19062400. Its totient is φ = 7091712.

The previous prime is 12387293. The next prime is 12387313. The reversal of 12387297 is 79278321.

12387297 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12387297 - 2² = 12387293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12387293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53979 + ... + 54207.

It is an arithmetic number, because the mean of its divisors is an integer number (595700).

Almost surely, 2^12387297 is an apocalyptic number.

It is an amenable number.

12387297 is a deficient number, since it is larger than the sum of its proper divisors (6675103).

12387297 is a wasteful number, since it uses less digits than its factorization.

12387297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its digits is 42336, while the sum is 39.

The square root of 12387297 is about 3519.5592053551. The cubic root of 12387297 is about 231.3798402088.

The spelling of 12387297 in words is "twelve million, three hundred eighty-seven thousand, two hundred ninety-seven".