2873281609 has 15 divisors (see below), whose sum is σ = 3167740765. Its totient is φ = 2606177860.

The previous prime is 2873281553. The next prime is 2873281627. The reversal of 2873281609 is 9061823782.

The square root of 2873281609 is 53603.

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

It is not a de Polignac number, because 2873281609 - 2¹¹ = 2873279561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2873281699) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 6485742 + ... + 6486184.

Almost surely, 2^2873281609 is an apocalyptic number.

2873281609 is the 53603-rd square number.

2873281609 is the 26802-nd centered octagonal number.

It is an amenable number.

2873281609 is a deficient number, since it is larger than the sum of its proper divisors (294459156).

2873281609 is an frugal number, since it uses more digits than its factorization.

2873281609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The cubic root of 2873281609 is about 1421.6501363387.

It can be divided in two parts, 2873 and 281609, that added together give a palindrome (284482).

The spelling of 2873281609 in words is "two billion, eight hundred seventy-three million, two hundred eighty-one thousand, six hundred nine".