26426189 has 2 divisors, whose sum is σ = 26426190. Its totient is φ = 26426188.

The previous prime is 26426107. The next prime is 26426201. The reversal of 26426189 is 98162462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 6086089 = 4510^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 26426189 - 2²⁰ = 25377613 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 (26426089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13213094 + 13213095.

It is an arithmetic number, because the mean of its divisors is an integer number (13213095).

Almost surely, 2^26426189 is an apocalyptic number.

It is an amenable number.

26426189 is a deficient number, since it is larger than the sum of its proper divisors (1).

26426189 is an equidigital number, since it uses as much as digits as its factorization.

26426189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 26426189 is about 5140.6409133492. The cubic root of 26426189 is about 297.8595384767.

The spelling of 26426189 in words is "twenty-six million, four hundred twenty-six thousand, one hundred eighty-nine".