12824805 has 32 divisors (see below), whose sum is σ = 23814144. Its totient is φ = 5772096.

The previous prime is 12824797. The next prime is 12824807. The reversal of 12824805 is 50842821.

12824805 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 12824805 - 2³ = 12824797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12824807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6124 + ... + 7946.

It is an arithmetic number, because the mean of its divisors is an integer number (744192).

Almost surely, 2^12824805 is an apocalyptic number.

12824805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12824805 is a deficient number, since it is larger than the sum of its proper divisors (10989339).

12824805 is a wasteful number, since it uses less digits than its factorization.

12824805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 12824805 is about 3581.1736902865. The cubic root of 12824805 is about 234.0724262622.

The spelling of 12824805 in words is "twelve million, eight hundred twenty-four thousand, eight hundred five".