12864885 has 16 divisors (see below), whose sum is σ = 22455360. Its totient is φ = 6237440.

The previous prime is 12864877. The next prime is 12864899. The reversal of 12864885 is 58846821.

12864885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12864885 - 2³ = 12864877 is a prime.

It is a congruent number.

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, 38820 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (1403460).

Almost surely, 2^12864885 is an apocalyptic number.

12864885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12864885 is a deficient number, since it is larger than the sum of its proper divisors (9590475).

12864885 is a wasteful number, since it uses less digits than its factorization.

12864885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77988.

The product of its digits is 122880, while the sum is 42.

The square root of 12864885 is about 3586.7652557702. The cubic root of 12864885 is about 234.3160132445.

The spelling of 12864885 in words is "twelve million, eight hundred sixty-four thousand, eight hundred eighty-five".