12868239 has 8 divisors (see below), whose sum is σ = 17176320. Its totient is φ = 8569496.

The previous prime is 12868217. The next prime is 12868283. The reversal of 12868239 is 93286821.

It is a happy number.

12868239 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 12868239 - 2²¹ = 10771087 is a prime.

It is a super-2 number, since 2×12868239² = 331183149922242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12868197 and 12868206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868039) 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, 2074 + ... + 5480.

It is an arithmetic number, because the mean of its divisors is an integer number (2147040).

Almost surely, 2^12868239 is an apocalyptic number.

12868239 is a deficient number, since it is larger than the sum of its proper divisors (4308081).

12868239 is a wasteful number, since it uses less digits than its factorization.

12868239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669.

The product of its digits is 41472, while the sum is 39.

The square root of 12868239 is about 3587.2327775041. The cubic root of 12868239 is about 234.3363742925.

The spelling of 12868239 in words is "twelve million, eight hundred sixty-eight thousand, two hundred thirty-nine".