12785723 has 12 divisors (see below), whose sum is σ = 13838448. Its totient is φ = 11790240.

The previous prime is 12785711. The next prime is 12785741. The reversal of 12785723 is 32758721.

It is not a de Polignac number, because 12785723 - 2¹⁶ = 12720187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12785753) 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 11 ways as a sum of consecutive naturals, for example, 19013 + ... + 19673.

It is an arithmetic number, because the mean of its divisors is an integer number (1153204).

Almost surely, 2^12785723 is an apocalyptic number.

12785723 is a deficient number, since it is larger than the sum of its proper divisors (1052725).

12785723 is an equidigital number, since it uses as much as digits as its factorization.

12785723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 713 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 12785723 is about 3575.7129359052. The cubic root of 12785723 is about 233.8344154487.

The spelling of 12785723 in words is "twelve million, seven hundred eighty-five thousand, seven hundred twenty-three".