26001889 has 2 divisors, whose sum is σ = 26001890. Its totient is φ = 26001888.

The previous prime is 26001881. The next prime is 26001907. The reversal of 26001889 is 98810062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19651489 + 6350400 = 4433^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 26001889 - 2³ = 26001881 is a prime.

It is not a weakly prime, because it can be changed into another prime (26001881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13000944 + 13000945.

It is an arithmetic number, because the mean of its divisors is an integer number (13000945).

Almost surely, 2^26001889 is an apocalyptic number.

It is an amenable number.

26001889 is a deficient number, since it is larger than the sum of its proper divisors (1).

26001889 is an equidigital number, since it uses as much as digits as its factorization.

26001889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 26001889 is about 5099.2047419181. The cubic root of 26001889 is about 296.2567812248.

It can be divided in two parts, 2600 and 1889, that added together give a square (4489 = 67²).

The spelling of 26001889 in words is "twenty-six million, one thousand, eight hundred eighty-nine".