12864826 has 32 divisors (see below), whose sum is σ = 21909888. Its totient is φ = 5624640.

The previous prime is 12864823. The next prime is 12864827. The reversal of 12864826 is 62846821.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (12864823) by changing a digit.

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, 41211 + ... + 41521.

It is an arithmetic number, because the mean of its divisors is an integer number (684684).

Almost surely, 2^12864826 is an apocalyptic number.

12864826 is a deficient number, since it is larger than the sum of its proper divisors (9045062).

12864826 is a wasteful number, since it uses less digits than its factorization.

12864826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its digits is 36864, while the sum is 37.

The square root of 12864826 is about 3586.7570310797. The cubic root of 12864826 is about 234.3156550430.

The spelling of 12864826 in words is "twelve million, eight hundred sixty-four thousand, eight hundred twenty-six".