26698871 has 2 divisors, whose sum is σ = 26698872. Its totient is φ = 26698870.

The previous prime is 26698817. The next prime is 26698921. The reversal of 26698871 is 17889662.

Together with previous prime (26698817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26698871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26698811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13349435 + 13349436.

It is an arithmetic number, because the mean of its divisors is an integer number (13349436).

Almost surely, 2^26698871 is an apocalyptic number.

26698871 is a deficient number, since it is larger than the sum of its proper divisors (1).

26698871 is an equidigital number, since it uses as much as digits as its factorization.

26698871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 26698871 is about 5167.0950252536. The cubic root of 26698871 is about 298.8805352658.

The spelling of 26698871 in words is "twenty-six million, six hundred ninety-eight thousand, eight hundred seventy-one".