12785873 has 4 divisors (see below), whose sum is σ = 12794688. Its totient is φ = 12777060.

The previous prime is 12785869. The next prime is 12785933. The reversal of 12785873 is 37858721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37858721 = 2383 ⋅15887.

It is a cyclic number.

It is not a de Polignac number, because 12785873 - 2² = 12785869 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 12785873.

It is not an unprimeable number, because it can be changed into a prime (12785813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661 + ... + 5322.

It is an arithmetic number, because the mean of its divisors is an integer number (3198672).

Almost surely, 2^12785873 is an apocalyptic number.

It is an amenable number.

12785873 is a deficient number, since it is larger than the sum of its proper divisors (8815).

12785873 is an equidigital number, since it uses as much as digits as its factorization.

12785873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814.

The product of its digits is 94080, while the sum is 41.

The square root of 12785873 is about 3575.7339106818. The cubic root of 12785873 is about 233.8353298808.

The spelling of 12785873 in words is "twelve million, seven hundred eighty-five thousand, eight hundred seventy-three".