12864605 has 16 divisors (see below), whose sum is σ = 16982784. Its totient is φ = 9295680.

The previous prime is 12864583. The next prime is 12864617. The reversal of 12864605 is 50646821.

It is not a de Polignac number, because 12864605 - 2⁶ = 12864541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^12864605 is an apocalyptic number.

It is an amenable number.

12864605 is a deficient number, since it is larger than the sum of its proper divisors (4118179).

12864605 is a wasteful number, since it uses less digits than its factorization.

12864605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12864605 is about 3586.7262231734. The cubic root of 12864605 is about 234.3143132952.

The spelling of 12864605 in words is "twelve million, eight hundred sixty-four thousand, six hundred five".