26813109 has 8 divisors (see below), whose sum is σ = 36904192. Its totient is φ = 17298720.

The previous prime is 26813107. The next prime is 26813117. The reversal of 26813109 is 90131862.

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

It is not a de Polignac number, because 26813109 - 2¹ = 26813107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26813107) 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, 144064 + ... + 144249.

It is an arithmetic number, because the mean of its divisors is an integer number (4613024).

Almost surely, 2^26813109 is an apocalyptic number.

It is an amenable number.

26813109 is a deficient number, since it is larger than the sum of its proper divisors (10091083).

26813109 is a wasteful number, since it uses less digits than its factorization.

26813109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288347.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 26813109 is about 5178.1375995622. The cubic root of 26813109 is about 299.3062078562.

The spelling of 26813109 in words is "twenty-six million, eight hundred thirteen thousand, one hundred nine".