12845397 has 4 divisors (see below), whose sum is σ = 17127200. Its totient is φ = 8563596.

The previous prime is 12845383. The next prime is 12845411. The reversal of 12845397 is 79354821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12845383) and next prime (12845411).

It is not a de Polignac number, because 12845397 - 2⁴ = 12845381 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 (12845597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140897 + ... + 2140902.

It is an arithmetic number, because the mean of its divisors is an integer number (4281800).

Almost surely, 2^12845397 is an apocalyptic number.

It is an amenable number.

12845397 is a deficient number, since it is larger than the sum of its proper divisors (4281803).

12845397 is an equidigital number, since it uses as much as digits as its factorization.

12845397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281802.

The product of its digits is 60480, while the sum is 39.

The square root of 12845397 is about 3584.0475722289. The cubic root of 12845397 is about 234.1976378337.

The spelling of 12845397 in words is "twelve million, eight hundred forty-five thousand, three hundred ninety-seven".