2209083621 has 16 divisors (see below), whose sum is σ = 3103319040. Its totient is φ = 1393927920.

The previous prime is 2209083601. The next prime is 2209083647. The reversal of 2209083621 is 1263809022.

It is a happy number.

It is not a de Polignac number, because 2209083621 - 2¹⁰ = 2209082597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209083601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46756 + ... + 81266.

It is an arithmetic number, because the mean of its divisors is an integer number (193957440).

Almost surely, 2^2209083621 is an apocalyptic number.

It is an amenable number.

2209083621 is a deficient number, since it is larger than the sum of its proper divisors (894235419).

2209083621 is a wasteful number, since it uses less digits than its factorization.

2209083621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35656.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2209083621 is about 47000.8895766878. The cubic root of 2209083621 is about 1302.3790009700.

The spelling of 2209083621 in words is "two billion, two hundred nine million, eighty-three thousand, six hundred twenty-one".