14000809 has 12 divisors (see below), whose sum is σ = 15335892. Its totient is φ = 12737280.

The previous prime is 14000807. The next prime is 14000821. The reversal of 14000809 is 90800041.

14000809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12054784 + 1946025 = 3472^2 + 1395^2 .

It is not a de Polignac number, because 14000809 - 2¹ = 14000807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14000809.

It is not an unprimeable number, because it can be changed into a prime (14000801) 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, 15909 + ... + 16765.

It is an arithmetic number, because the mean of its divisors is an integer number (1277991).

Almost surely, 2^14000809 is an apocalyptic number.

It is an amenable number.

14000809 is a deficient number, since it is larger than the sum of its proper divisors (1335083).

14000809 is an equidigital number, since it uses as much as digits as its factorization.

14000809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 14000809 is about 3741.7654923846. The cubic root of 14000809 is about 241.0188687212.

The spelling of 14000809 in words is "fourteen million, eight hundred nine", and thus it is an aban number.