12913817 has 8 divisors (see below), whose sum is σ = 14784000. Its totient is φ = 11049984.

The previous prime is 12913801. The next prime is 12913819. The reversal of 12913817 is 71831921.

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

It is a cyclic number.

It is not a de Polignac number, because 12913817 - 2⁴ = 12913801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12913819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (1848000).

Almost surely, 2^12913817 is an apocalyptic number.

It is an amenable number.

12913817 is a deficient number, since it is larger than the sum of its proper divisors (1870183).

12913817 is an equidigital number, since it uses as much as digits as its factorization.

12913817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175.

The product of its digits is 3024, while the sum is 32.

The square root of 12913817 is about 3593.5799698907. The cubic root of 12913817 is about 234.6127135329.

The spelling of 12913817 in words is "twelve million, nine hundred thirteen thousand, eight hundred seventeen".