26935681 has 2 divisors, whose sum is σ = 26935682. Its totient is φ = 26935680.

The previous prime is 26935679. The next prime is 26935687. The reversal of 26935681 is 18653962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15484225 + 11451456 = 3935^2 + 3384^2 .

It is a cyclic number.

It is not a de Polignac number, because 26935681 - 2¹ = 26935679 is a prime.

It is a super-2 number, since 2×26935681² = 1451061821867522, which contains 22 as substring.

Together with 26935679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26935687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13467840 + 13467841.

It is an arithmetic number, because the mean of its divisors is an integer number (13467841).

Almost surely, 2^26935681 is an apocalyptic number.

It is an amenable number.

26935681 is a deficient number, since it is larger than the sum of its proper divisors (1).

26935681 is an equidigital number, since it uses as much as digits as its factorization.

26935681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 26935681 is about 5189.9596337544. The cubic root of 26935681 is about 299.7615920705.

The spelling of 26935681 in words is "twenty-six million, nine hundred thirty-five thousand, six hundred eighty-one".