12906845 has 24 divisors (see below), whose sum is σ = 18194400. Its totient is φ = 8763552.

The previous prime is 12906823. The next prime is 12906847. The reversal of 12906845 is 54860921.

It is not a de Polignac number, because 12906845 - 2⁸ = 12906589 is a prime.

It is a super-4 number, since 4×12906845⁴ (a number of 30 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12906847) 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 23 ways as a sum of consecutive naturals, for example, 33866 + ... + 34244.

It is an arithmetic number, because the mean of its divisors is an integer number (758100).

Almost surely, 2^12906845 is an apocalyptic number.

It is an amenable number.

12906845 is a deficient number, since it is larger than the sum of its proper divisors (5287555).

12906845 is a wasteful number, since it uses less digits than its factorization.

12906845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 12906845 is about 3592.6097756366. The cubic root of 12906845 is about 234.5704844927.

The spelling of 12906845 in words is "twelve million, nine hundred six thousand, eight hundred forty-five".