12783005 has 8 divisors (see below), whose sum is σ = 15834624. Its totient is φ = 9896400.

The previous prime is 12782993. The next prime is 12783007. The reversal of 12783005 is 50038721.

12783005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12783005 - 2⁴ = 12782989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12783007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41081 + ... + 41390.

It is an arithmetic number, because the mean of its divisors is an integer number (1979328).

Almost surely, 2^12783005 is an apocalyptic number.

It is an amenable number.

12783005 is a deficient number, since it is larger than the sum of its proper divisors (3051619).

12783005 is an equidigital number, since it uses as much as digits as its factorization.

12783005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82507.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12783005 is about 3575.3328516377. The cubic root of 12783005 is about 233.8178447007.

The spelling of 12783005 in words is "twelve million, seven hundred eighty-three thousand, five".