2213984809 has 9 divisors (see below), whose sum is σ = 2234547549. Its totient is φ = 2193610860.

The previous prime is 2213984779. The next prime is 2213984821. The reversal of 2213984809 is 9084893122.

The square root of 2213984809 is 47053.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2213984809 - 2¹¹ = 2213982761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213984879) 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 8 ways as a sum of consecutive naturals, for example, 9928072 + ... + 9928294.

It is an arithmetic number, because the mean of its divisors is an integer number (248283061).

Almost surely, 2^2213984809 is an apocalyptic number.

2213984809 is the 47053-rd square number.

2213984809 is the 23527-th centered octagonal number.

It is an amenable number.

2213984809 is a deficient number, since it is larger than the sum of its proper divisors (20562740).

2213984809 is an frugal number, since it uses more digits than its factorization.

2213984809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The cubic root of 2213984809 is about 1303.3414648286.

The spelling of 2213984809 in words is "two billion, two hundred thirteen million, nine hundred eighty-four thousand, eight hundred nine".