26896809 has 8 divisors (see below), whose sum is σ = 37019392. Its totient is φ = 17352720.

The previous prime is 26896787. The next prime is 26896841. The reversal of 26896809 is 90869862.

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

It is not a de Polignac number, because 26896809 - 2⁹ = 26896297 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (26896879) 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, 144514 + ... + 144699.

It is an arithmetic number, because the mean of its divisors is an integer number (4627424).

Almost surely, 2^26896809 is an apocalyptic number.

It is an amenable number.

26896809 is a deficient number, since it is larger than the sum of its proper divisors (10122583).

26896809 is a wasteful number, since it uses less digits than its factorization.

26896809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289247.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 26896809 is about 5186.2133585112. The cubic root of 26896809 is about 299.6173231802.

The spelling of 26896809 in words is "twenty-six million, eight hundred ninety-six thousand, eight hundred nine".