12785357 has 6 divisors (see below), whose sum is σ = 13844682. Its totient is φ = 11801712.

The previous prime is 12785351. The next prime is 12785369. The reversal of 12785357 is 75358721.

It is a happy number.

12785357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11881 + 12773476 = 109^2 + 3574^2 .

It is not a de Polignac number, because 12785357 - 2¹⁶ = 12719821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12785357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37658 + ... + 37995.

It is an arithmetic number, because the mean of its divisors is an integer number (2307447).

Almost surely, 2^12785357 is an apocalyptic number.

It is an amenable number.

12785357 is a deficient number, since it is larger than the sum of its proper divisors (1059325).

12785357 is an equidigital number, since it uses as much as digits as its factorization.

12785357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75679 (or 75666 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 12785357 is about 3575.6617569340. The cubic root of 12785357 is about 233.8321842045.

The spelling of 12785357 in words is "twelve million, seven hundred eighty-five thousand, three hundred fifty-seven".