12646297 has 4 divisors (see below), whose sum is σ = 13196160. Its totient is φ = 12096436.

The previous prime is 12646261. The next prime is 12646313. The reversal of 12646297 is 79264621.

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 not a de Polignac number, because 12646297 - 2¹⁹ = 12122009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12646217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274897 + ... + 274942.

It is an arithmetic number, because the mean of its divisors is an integer number (3299040).

Almost surely, 2^12646297 is an apocalyptic number.

It is an amenable number.

12646297 is a deficient number, since it is larger than the sum of its proper divisors (549863).

12646297 is an equidigital number, since it uses as much as digits as its factorization.

12646297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549862.

The product of its digits is 36288, while the sum is 37.

The square root of 12646297 is about 3556.1632414725. The cubic root of 12646297 is about 232.9813329676.

The spelling of 12646297 in words is "twelve million, six hundred forty-six thousand, two hundred ninety-seven".