26288641 has 2 divisors, whose sum is σ = 26288642. Its totient is φ = 26288640.

The previous prime is 26288629. The next prime is 26288657. The reversal of 26288641 is 14688262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18671041 + 7617600 = 4321^2 + 2760^2 .

It is a cyclic number.

It is not a de Polignac number, because 26288641 - 2¹⁷ = 26157569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26288641.

It is not a weakly prime, because it can be changed into another prime (26288441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13144320 + 13144321.

It is an arithmetic number, because the mean of its divisors is an integer number (13144321).

Almost surely, 2^26288641 is an apocalyptic number.

It is an amenable number.

26288641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26288641 is an equidigital number, since it uses as much as digits as its factorization.

26288641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 37.

The square root of 26288641 is about 5127.2449717173. The cubic root of 26288641 is about 297.3418541343.

The spelling of 26288641 in words is "twenty-six million, two hundred eighty-eight thousand, six hundred forty-one".