26023609 has 2 divisors, whose sum is σ = 26023610. Its totient is φ = 26023608.

The previous prime is 26023607. The next prime is 26023619. The reversal of 26023609 is 90632062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 6487209 = 4420^2 + 2547^2 .

It is a cyclic number.

It is not a de Polignac number, because 26023609 - 2¹ = 26023607 is a prime.

Together with 26023607, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26023607) 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, 13011804 + 13011805.

It is an arithmetic number, because the mean of its divisors is an integer number (13011805).

Almost surely, 2^26023609 is an apocalyptic number.

It is an amenable number.

26023609 is a deficient number, since it is larger than the sum of its proper divisors (1).

26023609 is an equidigital number, since it uses as much as digits as its factorization.

26023609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 26023609 is about 5101.3340412092. The cubic root of 26023609 is about 296.3392483926.

The spelling of 26023609 in words is "twenty-six million, twenty-three thousand, six hundred nine".