26065889 has 2 divisors, whose sum is σ = 26065890. Its totient is φ = 26065888.

The previous prime is 26065883. The next prime is 26065927. The reversal of 26065889 is 98856062.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22165264 + 3900625 = 4708^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 26065889 - 2²⁰ = 25017313 is a prime.

It is not a weakly prime, because it can be changed into another prime (26065883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13032944 + 13032945.

It is an arithmetic number, because the mean of its divisors is an integer number (13032945).

Almost surely, 2^26065889 is an apocalyptic number.

It is an amenable number.

26065889 is a deficient number, since it is larger than the sum of its proper divisors (1).

26065889 is an equidigital number, since it uses as much as digits as its factorization.

26065889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 26065889 is about 5105.4763734641. The cubic root of 26065889 is about 296.4996469013.

The spelling of 26065889 in words is "twenty-six million, sixty-five thousand, eight hundred eighty-nine".