26005393 has 8 divisors (see below), whose sum is σ = 27588168. Its totient is φ = 24428544.

The previous prime is 26005391. The next prime is 26005423. The reversal of 26005393 is 39350062.

It can be written as a sum of positive squares in 4 ways, for example, as 10188864 + 15816529 = 3192^2 + 3977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26005393 - 2¹ = 26005391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26005391) 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 in 7 ways as a sum of consecutive naturals, for example, 10305 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (3448521).

Almost surely, 2^26005393 is an apocalyptic number.

It is an amenable number.

26005393 is a deficient number, since it is larger than the sum of its proper divisors (1582775).

26005393 is a wasteful number, since it uses less digits than its factorization.

26005393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 26005393 is about 5099.5483133313. The cubic root of 26005393 is about 296.2700884263.

The spelling of 26005393 in words is "twenty-six million, five thousand, three hundred ninety-three".