26345813 has 8 divisors (see below), whose sum is σ = 29139768. Its totient is φ = 23661504.

The previous prime is 26345791. The next prime is 26345827. The reversal of 26345813 is 31854362.

It can be written as a sum of positive squares in 4 ways, for example, as 11546404 + 14799409 = 3398^2 + 3847^2 .

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 26345813 - 2¹² = 26341717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26345813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26345843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26906 + ... + 27867.

It is an arithmetic number, because the mean of its divisors is an integer number (3642471).

Almost surely, 2^26345813 is an apocalyptic number.

It is an amenable number.

26345813 is a deficient number, since it is larger than the sum of its proper divisors (2793955).

26345813 is a wasteful number, since it uses less digits than its factorization.

26345813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54823.

The product of its digits is 17280, while the sum is 32.

The square root of 26345813 is about 5132.8172576081. The cubic root of 26345813 is about 297.5572490631.

The spelling of 26345813 in words is "twenty-six million, three hundred forty-five thousand, eight hundred thirteen".