12806765 has 8 divisors (see below), whose sum is σ = 15479520. Its totient is φ = 10171152.

The previous prime is 12806749. The next prime is 12806861. The reversal of 12806765 is 56760821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12806765 - 2⁴ = 12806749 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8519 + ... + 9908.

It is an arithmetic number, because the mean of its divisors is an integer number (1934940).

Almost surely, 2^12806765 is an apocalyptic number.

It is an amenable number.

12806765 is a deficient number, since it is larger than the sum of its proper divisors (2672755).

12806765 is a wasteful number, since it uses less digits than its factorization.

12806765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18571.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 12806765 is about 3578.6540766048. The cubic root of 12806765 is about 233.9626221740.

The spelling of 12806765 in words is "twelve million, eight hundred six thousand, seven hundred sixty-five".