3090209 has 4 divisors (see below), whose sum is σ = 3272004. Its totient is φ = 2908416.

The previous prime is 3090193. The next prime is 3090221. The reversal of 3090209 is 9020903.

3090209 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1697809 + 1392400 = 1303^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 3090209 - 2⁴ = 3090193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3090229) 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, 90872 + ... + 90905.

It is an arithmetic number, because the mean of its divisors is an integer number (818001).

Almost surely, 2^3090209 is an apocalyptic number.

It is an amenable number.

3090209 is a deficient number, since it is larger than the sum of its proper divisors (181795).

3090209 is a wasteful number, since it uses less digits than its factorization.

3090209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181794.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 3090209 is about 1757.8990300925. The cubic root of 3090209 is about 145.6563035728.

The spelling of 3090209 in words is "three million, ninety thousand, two hundred nine".