12866017 has 4 divisors (see below), whose sum is σ = 12876336. Its totient is φ = 12855700.

The previous prime is 12866011. The next prime is 12866041. The reversal of 12866017 is 71066821.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12866017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12866017.

It is not an unprimeable number, because it can be changed into a prime (12866011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2983 + ... + 5884.

It is an arithmetic number, because the mean of its divisors is an integer number (3219084).

Almost surely, 2^12866017 is an apocalyptic number.

It is an amenable number.

12866017 is a deficient number, since it is larger than the sum of its proper divisors (10319).

12866017 is an equidigital number, since it uses as much as digits as its factorization.

12866017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10318.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12866017 is about 3586.9230546528. The cubic root of 12866017 is about 234.3228856456.

The spelling of 12866017 in words is "twelve million, eight hundred sixty-six thousand, seventeen".