26243017 has 2 divisors, whose sum is σ = 26243018. Its totient is φ = 26243016.

The previous prime is 26242987. The next prime is 26243039. The reversal of 26243017 is 71034262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 881721 = 5036^2 + 939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26243017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26242982 and 26243000.

It is not a weakly prime, because it can be changed into another prime (26243117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13121508 + 13121509.

It is an arithmetic number, because the mean of its divisors is an integer number (13121509).

Almost surely, 2^26243017 is an apocalyptic number.

It is an amenable number.

26243017 is a deficient number, since it is larger than the sum of its proper divisors (1).

26243017 is an equidigital number, since it uses as much as digits as its factorization.

26243017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 26243017 is about 5122.7938666318. The cubic root of 26243017 is about 297.1697420267.

Adding to 26243017 its reverse (71034262), we get a palindrome (97277279).

The spelling of 26243017 in words is "twenty-six million, two hundred forty-three thousand, seventeen".