26812913 has 2 divisors, whose sum is σ = 26812914. Its totient is φ = 26812912.

The previous prime is 26812897. The next prime is 26812921. The reversal of 26812913 is 31921862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21086464 + 5726449 = 4592^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 26812913 - 2⁴ = 26812897 is a prime.

It is a Chen prime.

It is equal to p_1672079 and since 26812913 and 1672079 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26812913.

It is not a weakly prime, because it can be changed into another prime (26812943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13406456 + 13406457.

It is an arithmetic number, because the mean of its divisors is an integer number (13406457).

Almost surely, 2^26812913 is an apocalyptic number.

It is an amenable number.

26812913 is a deficient number, since it is larger than the sum of its proper divisors (1).

26812913 is an equidigital number, since it uses as much as digits as its factorization.

26812913 is an evil number, because the sum of its binary digits is even.

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

The square root of 26812913 is about 5178.1186738042. The cubic root of 26812913 is about 299.3054785592.

The spelling of 26812913 in words is "twenty-six million, eight hundred twelve thousand, nine hundred thirteen".