12709538 has 8 divisors (see below), whose sum is σ = 19095888. Its totient is φ = 6344244.

The previous prime is 12709531. The next prime is 12709561. The reversal of 12709538 is 83590721.

12709538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12709498 and 12709507.

It is not an unprimeable number, because it can be changed into a prime (12709531) 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, 3656 + ... + 6227.

It is an arithmetic number, because the mean of its divisors is an integer number (2386986).

Almost surely, 2^12709538 is an apocalyptic number.

12709538 is a deficient number, since it is larger than the sum of its proper divisors (6386350).

12709538 is an equidigital number, since it uses as much as digits as its factorization.

12709538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10528.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 12709538 is about 3565.0438987480. The cubic root of 12709538 is about 233.3690480479.

The spelling of 12709538 in words is "twelve million, seven hundred nine thousand, five hundred thirty-eight".