12801709 has 4 divisors (see below), whose sum is σ = 12814816. Its totient is φ = 12788604.

The previous prime is 12801703. The next prime is 12801751. The reversal of 12801709 is 90710821.

12801709 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12801709 - 2²¹ = 10704557 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 (12801703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4959 + ... + 7084.

It is an arithmetic number, because the mean of its divisors is an integer number (3203704).

Almost surely, 2^12801709 is an apocalyptic number.

It is an amenable number.

12801709 is a deficient number, since it is larger than the sum of its proper divisors (13107).

12801709 is a wasteful number, since it uses less digits than its factorization.

12801709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 12801709 is about 3577.9475960388. The cubic root of 12801709 is about 233.9318293152.

The spelling of 12801709 in words is "twelve million, eight hundred one thousand, seven hundred nine".