2286809 has 4 divisors (see below), whose sum is σ = 2613504. Its totient is φ = 1960116.

The previous prime is 2286803. The next prime is 2286827. The reversal of 2286809 is 9086822.

2286809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2286809 - 2⁴ = 2286793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2286803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163337 + ... + 163350.

It is an arithmetic number, because the mean of its divisors is an integer number (653376).

2^2286809 is an apocalyptic number.

It is an amenable number.

2286809 is a deficient number, since it is larger than the sum of its proper divisors (326695).

2286809 is an equidigital number, since it uses as much as digits as its factorization.

2286809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326694.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2286809 is about 1512.2198914179. The cubic root of 2286809 is about 131.7477774722.

The spelling of 2286809 in words is "two million, two hundred eighty-six thousand, eight hundred nine".