26492813 has 2 divisors, whose sum is σ = 26492814. Its totient is φ = 26492812.

The previous prime is 26492771. The next prime is 26492827. The reversal of 26492813 is 31829462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23059204 + 3433609 = 4802^2 + 1853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26492813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26492513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13246406 + 13246407.

It is an arithmetic number, because the mean of its divisors is an integer number (13246407).

Almost surely, 2^26492813 is an apocalyptic number.

It is an amenable number.

26492813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26492813 is an equidigital number, since it uses as much as digits as its factorization.

26492813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 26492813 is about 5147.1169600078. The cubic root of 26492813 is about 298.1096431518.

The spelling of 26492813 in words is "twenty-six million, four hundred ninety-two thousand, eight hundred thirteen".