12984445 has 4 divisors (see below), whose sum is σ = 15581340. Its totient is φ = 10387552.

The previous prime is 12984427. The next prime is 12984451. The reversal of 12984445 is 54448921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8082649 + 4901796 = 2843^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 12984445 - 2¹⁵ = 12951677 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 3 ways as a sum of consecutive naturals, for example, 1298440 + ... + 1298449.

It is an arithmetic number, because the mean of its divisors is an integer number (3895335).

Almost surely, 2^12984445 is an apocalyptic number.

It is an amenable number.

12984445 is a deficient number, since it is larger than the sum of its proper divisors (2596895).

12984445 is an equidigital number, since it uses as much as digits as its factorization.

12984445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596894.

The product of its digits is 46080, while the sum is 37.

The square root of 12984445 is about 3603.3935394292. The cubic root of 12984445 is about 235.0396492629.

The spelling of 12984445 in words is "twelve million, nine hundred eighty-four thousand, four hundred forty-five".