2813984209 has 3 divisors (see below), whose sum is σ = 2814037257. Its totient is φ = 2813931162.

The previous prime is 2813984183. The next prime is 2813984219. The reversal of 2813984209 is 9024893182.

The square root of 2813984209 is 53047.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2813984209 - 2¹⁷ = 2813853137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2813984219) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26524 + ... + 79570.

It is an arithmetic number, because the mean of its divisors is an integer number (938012419).

Almost surely, 2^2813984209 is an apocalyptic number.

2813984209 is the 53047-th square number.

2813984209 is the 26524-th centered octagonal number.

It is an amenable number.

2813984209 is a deficient number, since it is larger than the sum of its proper divisors (53048).

2813984209 is an frugal number, since it uses more digits than its factorization.

2813984209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106094 (or 53047 counting only the distinct ones).

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

The cubic root of 2813984209 is about 1411.8023008377.

The spelling of 2813984209 in words is "two billion, eight hundred thirteen million, nine hundred eighty-four thousand, two hundred nine".