2209085 has 8 divisors (see below), whose sum is σ = 2722776. Its totient is φ = 1719360.

The previous prime is 2209079. The next prime is 2209117. The reversal of 2209085 is 5809022.

It can be written as a sum of positive squares in 4 ways, for example, as 375769 + 1833316 = 613^2 + 1354^2 .

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

It is not a de Polignac number, because 2209085 - 2¹⁰ = 2208061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5786 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (340347).

2^2209085 is an apocalyptic number.

It is an amenable number.

2209085 is a deficient number, since it is larger than the sum of its proper divisors (513691).

2209085 is a wasteful number, since it uses less digits than its factorization.

2209085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11983.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2209085 is about 1486.2990950680. The cubic root of 2209085 is about 130.2379271969.

The spelling of 2209085 in words is "two million, two hundred nine thousand, eighty-five".