26845613 has 12 divisors (see below), whose sum is σ = 28859040. Its totient is φ = 24903216.

The previous prime is 26845589. The next prime is 26845667. The reversal of 26845613 is 31654862.

It is not a de Polignac number, because 26845613 - 2⁶ = 26845549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26845813) 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 11 ways as a sum of consecutive naturals, for example, 53120 + ... + 53622.

It is an arithmetic number, because the mean of its divisors is an integer number (2404920).

Almost surely, 2^26845613 is an apocalyptic number.

It is an amenable number.

26845613 is a deficient number, since it is larger than the sum of its proper divisors (2013427).

26845613 is an equidigital number, since it uses as much as digits as its factorization.

26845613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 575 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 26845613 is about 5181.2752291304. The cubic root of 26845613 is about 299.4271029560.

Subtracting 26845613 from its reverse (31654862), we obtain a square (4809249 = 2193²).

The spelling of 26845613 in words is "twenty-six million, eight hundred forty-five thousand, six hundred thirteen".