26727641 has 2 divisors, whose sum is σ = 26727642. Its totient is φ = 26727640.

The previous prime is 26727629. The next prime is 26727643. The reversal of 26727641 is 14672762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 7182400 = 4421^2 + 2680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26727641 is a prime.

Together with 26727643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26727643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13363820 + 13363821.

It is an arithmetic number, because the mean of its divisors is an integer number (13363821).

Almost surely, 2^26727641 is an apocalyptic number.

It is an amenable number.

26727641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26727641 is an equidigital number, since it uses as much as digits as its factorization.

26727641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 26727641 is about 5169.8782384114. The cubic root of 26727641 is about 298.9878519913.

The spelling of 26727641 in words is "twenty-six million, seven hundred twenty-seven thousand, six hundred forty-one".