26208009 has 8 divisors (see below), whose sum is σ = 38826720. Its totient is φ = 17471988.

The previous prime is 26208001. The next prime is 26208043. The reversal of 26208009 is 90080262.

It is not a de Polignac number, because 26208009 - 2³ = 26208001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 970667 = 26208009 / (2 + 6 + 2 + 0 + 8 + 0 + 0 + 9).

It is not an unprimeable number, because it can be changed into a prime (26208001) 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, 485307 + ... + 485360.

It is an arithmetic number, because the mean of its divisors is an integer number (4853340).

Almost surely, 2^26208009 is an apocalyptic number.

It is an amenable number.

26208009 is a deficient number, since it is larger than the sum of its proper divisors (12618711).

26208009 is an equidigital number, since it uses as much as digits as its factorization.

26208009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970676 (or 970670 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 26208009 is about 5119.3758408619. The cubic root of 26208009 is about 297.0375424433.

The spelling of 26208009 in words is "twenty-six million, two hundred eight thousand, nine".