12785443 has 8 divisors (see below), whose sum is σ = 13993200. Its totient is φ = 11585280.

The previous prime is 12785419. The next prime is 12785449. The reversal of 12785443 is 34458721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12785443 - 2¹⁷ = 12654371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12785399 and 12785408.

It is not an unprimeable number, because it can be changed into a prime (12785449) 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 7 ways as a sum of consecutive naturals, for example, 1983 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (1749150).

Almost surely, 2^12785443 is an apocalyptic number.

12785443 is a deficient number, since it is larger than the sum of its proper divisors (1207757).

12785443 is a wasteful number, since it uses less digits than its factorization.

12785443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797.

The product of its digits is 26880, while the sum is 34.

The square root of 12785443 is about 3575.6737826597. The cubic root of 12785443 is about 233.8327084898.

The spelling of 12785443 in words is "twelve million, seven hundred eighty-five thousand, four hundred forty-three".