26120809 has 12 divisors (see below), whose sum is σ = 30858192. Its totient is φ = 21918000.

The previous prime is 26120807. The next prime is 26120819. The reversal of 26120809 is 90802162.

It is a happy number.

It is not a de Polignac number, because 26120809 - 2¹ = 26120807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26120807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5167 + ... + 8884.

It is an arithmetic number, because the mean of its divisors is an integer number (2571516).

Almost surely, 2^26120809 is an apocalyptic number.

It is an amenable number.

26120809 is a deficient number, since it is larger than the sum of its proper divisors (4737383).

26120809 is a wasteful number, since it uses less digits than its factorization.

26120809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088 (or 14075 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 26120809 is about 5110.8520816005. The cubic root of 26120809 is about 296.7077392670.

The spelling of 26120809 in words is "twenty-six million, one hundred twenty thousand, eight hundred nine".