26089613 has 16 divisors (see below), whose sum is σ = 30022272. Its totient is φ = 22440000.

The previous prime is 26089601. The next prime is 26089619. The reversal of 26089613 is 31698062.

It is not a de Polignac number, because 26089613 - 2¹⁸ = 25827469 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 (26089619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25043 + ... + 26063.

It is an arithmetic number, because the mean of its divisors is an integer number (1876392).

Almost surely, 2^26089613 is an apocalyptic number.

26089613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

26089613 is a deficient number, since it is larger than the sum of its proper divisors (3932659).

26089613 is a wasteful number, since it uses less digits than its factorization.

26089613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 26089613 is about 5107.7992325462. The cubic root of 26089613 is about 296.5895731729.

It can be divided in two parts, 2608 and 9613, that added together give a palindrome (12221).

The spelling of 26089613 in words is "twenty-six million, eighty-nine thousand, six hundred thirteen".