12946817 has 4 divisors (see below), whose sum is σ = 13942740. Its totient is φ = 11950896.

The previous prime is 12946811. The next prime is 12946819. The reversal of 12946817 is 71864921.

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 1175056 + 11771761 = 1084^2 + 3431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12946817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12946811) 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, 497942 + ... + 497967.

It is an arithmetic number, because the mean of its divisors is an integer number (3485685).

Almost surely, 2^12946817 is an apocalyptic number.

It is an amenable number.

12946817 is a deficient number, since it is larger than the sum of its proper divisors (995923).

12946817 is an equidigital number, since it uses as much as digits as its factorization.

12946817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995922.

The product of its digits is 24192, while the sum is 38.

The square root of 12946817 is about 3598.1685619215. The cubic root of 12946817 is about 234.8123868509.

The spelling of 12946817 in words is "twelve million, nine hundred forty-six thousand, eight hundred seventeen".