12824481 has 4 divisors (see below), whose sum is σ = 17099312. Its totient is φ = 8549652.

The previous prime is 12824473. The next prime is 12824491. The reversal of 12824481 is 18442821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18442821 = 3 ⋅6147607.

It is not a de Polignac number, because 12824481 - 2³ = 12824473 is a prime.

It is a super-2 number, since 2×12824481² = 328934625838722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12824491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137411 + ... + 2137416.

It is an arithmetic number, because the mean of its divisors is an integer number (4274828).

Almost surely, 2^12824481 is an apocalyptic number.

It is an amenable number.

12824481 is a deficient number, since it is larger than the sum of its proper divisors (4274831).

12824481 is an equidigital number, since it uses as much as digits as its factorization.

12824481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274830.

The product of its digits is 4096, while the sum is 30.

The square root of 12824481 is about 3581.1284534348. The cubic root of 12824481 is about 234.0704550794.

The spelling of 12824481 in words is "twelve million, eight hundred twenty-four thousand, four hundred eighty-one".