12864417 has 8 divisors (see below), whose sum is σ = 17517696. Its totient is φ = 8393712.

The previous prime is 12864413. The next prime is 12864421. The reversal of 12864417 is 71446821.

It is an interprime number because it is at equal distance from previous prime (12864413) and next prime (12864421).

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

It is not a de Polignac number, because 12864417 - 2² = 12864413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12864413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45478 + ... + 45759.

It is an arithmetic number, because the mean of its divisors is an integer number (2189712).

Almost surely, 2^12864417 is an apocalyptic number.

It is an amenable number.

12864417 is a deficient number, since it is larger than the sum of its proper divisors (4653279).

12864417 is an equidigital number, since it uses as much as digits as its factorization.

12864417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91287.

The product of its digits is 10752, while the sum is 33.

The square root of 12864417 is about 3586.7000153344. The cubic root of 12864417 is about 234.3131718867.

The spelling of 12864417 in words is "twelve million, eight hundred sixty-four thousand, four hundred seventeen".