26911601 has 2 divisors, whose sum is σ = 26911602. Its totient is φ = 26911600.

The previous prime is 26911529. The next prime is 26911607. The reversal of 26911601 is 10611962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25959025 + 952576 = 5095^2 + 976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26911601 is a prime.

It is a Chen prime.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is not a weakly prime, because it can be changed into another prime (26911607) 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, 13455800 + 13455801.

It is an arithmetic number, because the mean of its divisors is an integer number (13455801).

Almost surely, 2^26911601 is an apocalyptic number.

It is an amenable number.

26911601 is a deficient number, since it is larger than the sum of its proper divisors (1).

26911601 is an equidigital number, since it uses as much as digits as its factorization.

26911601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 26911601 is about 5187.6392511430. The cubic root of 26911601 is about 299.6722383343.

The spelling of 26911601 in words is "twenty-six million, nine hundred eleven thousand, six hundred one".