12868609 has 8 divisors (see below), whose sum is σ = 14673960. Its totient is φ = 11179776.

The previous prime is 12868607. The next prime is 12868613. The reversal of 12868609 is 90686821.

12868609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2241009 + 10627600 = 1497^2 + 3260^2 .

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 12868609 - 2¹ = 12868607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12868607) 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, 28894 + ... + 29335.

It is an arithmetic number, because the mean of its divisors is an integer number (1834245).

Almost surely, 2^12868609 is an apocalyptic number.

It is an amenable number.

12868609 is a deficient number, since it is larger than the sum of its proper divisors (1805351).

12868609 is a wasteful number, since it uses less digits than its factorization.

12868609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58259.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 12868609 is about 3587.2843489191. The cubic root of 12868609 is about 234.3386202260.

The spelling of 12868609 in words is "twelve million, eight hundred sixty-eight thousand, six hundred nine".