12773689 has 4 divisors (see below), whose sum is σ = 13014756. Its totient is φ = 12532624.

The previous prime is 12773669. The next prime is 12773693. The reversal of 12773689 is 98637721.

It is a happy number.

12773689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10791225 + 1982464 = 3285^2 + 1408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12773689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12773609) 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, 120454 + ... + 120559.

It is an arithmetic number, because the mean of its divisors is an integer number (3253689).

Almost surely, 2^12773689 is an apocalyptic number.

It is an amenable number.

12773689 is a deficient number, since it is larger than the sum of its proper divisors (241067).

12773689 is an equidigital number, since it uses as much as digits as its factorization.

12773689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241066.

The product of its digits is 127008, while the sum is 43.

The square root of 12773689 is about 3574.0297984208. The cubic root of 12773689 is about 233.7610302973.

The spelling of 12773689 in words is "twelve million, seven hundred seventy-three thousand, six hundred eighty-nine".