26889799 has 2 divisors, whose sum is σ = 26889800. Its totient is φ = 26889798.

The previous prime is 26889791. The next prime is 26889817. The reversal of 26889799 is 99798862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26889799 - 2³ = 26889791 is a prime.

It is a super-2 number, since 2×26889799² = 1446122580520802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26889791) 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, 13444899 + 13444900.

It is an arithmetic number, because the mean of its divisors is an integer number (13444900).

Almost surely, 2^26889799 is an apocalyptic number.

26889799 is a deficient number, since it is larger than the sum of its proper divisors (1).

26889799 is an equidigital number, since it uses as much as digits as its factorization.

26889799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 58.

The square root of 26889799 is about 5185.5374841958. The cubic root of 26889799 is about 299.5912915925.

The spelling of 26889799 in words is "twenty-six million, eight hundred eighty-nine thousand, seven hundred ninety-nine".