12845997 has 24 divisors (see below), whose sum is σ = 19638528. Its totient is φ = 8078400.

The previous prime is 12845969. The next prime is 12846007. The reversal of 12845997 is 79954821.

12845997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12845997 - 2¹⁸ = 12583853 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 10878 + ... + 12000.

It is an arithmetic number, because the mean of its divisors is an integer number (818272).

Almost surely, 2^12845997 is an apocalyptic number.

It is an amenable number.

12845997 is a deficient number, since it is larger than the sum of its proper divisors (6792531).

12845997 is a wasteful number, since it uses less digits than its factorization.

12845997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1198 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12845997 is about 3584.1312754976. The cubic root of 12845997 is about 234.2012841825.

The spelling of 12845997 in words is "twelve million, eight hundred forty-five thousand, nine hundred ninety-seven".