12806395 has 24 divisors (see below), whose sum is σ = 18041184. Its totient is φ = 8701056.

The previous prime is 12806393. The next prime is 12806407. The reversal of 12806395 is 59360821.

12806395 = T₁₉₃ + T₁₉₄ + ... + T₄₃₇.

It is not a de Polignac number, because 12806395 - 2¹ = 12806393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12806395.

It is not an unprimeable number, because it can be changed into a prime (12806393) 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, 40759 + ... + 41071.

It is an arithmetic number, because the mean of its divisors is an integer number (751716).

Almost surely, 2^12806395 is an apocalyptic number.

12806395 is a deficient number, since it is larger than the sum of its proper divisors (5234789).

12806395 is a wasteful number, since it uses less digits than its factorization.

12806395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12806395 is about 3578.6023808185. The cubic root of 12806395 is about 233.9603690158.

The spelling of 12806395 in words is "twelve million, eight hundred six thousand, three hundred ninety-five".