26861959 has 2 divisors, whose sum is σ = 26861960. Its totient is φ = 26861958.

The previous prime is 26861909. The next prime is 26861977. The reversal of 26861959 is 95916862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26861959 - 2¹⁵ = 26829191 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26861909) 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, 13430979 + 13430980.

It is an arithmetic number, because the mean of its divisors is an integer number (13430980).

Almost surely, 2^26861959 is an apocalyptic number.

26861959 is a deficient number, since it is larger than the sum of its proper divisors (1).

26861959 is an equidigital number, since it uses as much as digits as its factorization.

26861959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 26861959 is about 5182.8523999821. The cubic root of 26861959 is about 299.4878632544.

The spelling of 26861959 in words is "twenty-six million, eight hundred sixty-one thousand, nine hundred fifty-nine".