12866345 has 16 divisors (see below), whose sum is σ = 15830400. Its totient is φ = 10036224.

The previous prime is 12866339. The next prime is 12866351. The reversal of 12866345 is 54366821.

It is an interprime number because it is at equal distance from previous prime (12866339) and next prime (12866351).

It is a cyclic number.

It is not a de Polignac number, because 12866345 - 2⁶ = 12866281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64556 + ... + 64754.

It is an arithmetic number, because the mean of its divisors is an integer number (989400).

Almost surely, 2^12866345 is an apocalyptic number.

It is an amenable number.

12866345 is a deficient number, since it is larger than the sum of its proper divisors (2964055).

12866345 is a wasteful number, since it uses less digits than its factorization.

12866345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 34560, while the sum is 35.

The square root of 12866345 is about 3586.9687760001. The cubic root of 12866345 is about 234.3248768667.

The spelling of 12866345 in words is "twelve million, eight hundred sixty-six thousand, three hundred forty-five".