12826913 has 4 divisors (see below), whose sum is σ = 13993008. Its totient is φ = 11660820.

The previous prime is 12826909. The next prime is 12826921. The reversal of 12826913 is 31962821.

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 12826913 - 2² = 12826909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12826913.

It is not an unprimeable number, because it can be changed into a prime (12823913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583031 + ... + 583052.

It is an arithmetic number, because the mean of its divisors is an integer number (3498252).

Almost surely, 2^12826913 is an apocalyptic number.

It is an amenable number.

12826913 is a deficient number, since it is larger than the sum of its proper divisors (1166095).

12826913 is a wasteful number, since it uses less digits than its factorization.

12826913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166094.

The product of its digits is 5184, while the sum is 32.

The square root of 12826913 is about 3581.4679951104. The cubic root of 12826913 is about 234.0852503075.

The spelling of 12826913 in words is "twelve million, eight hundred twenty-six thousand, nine hundred thirteen".