2873869309 has 4 divisors (see below), whose sum is σ = 2875788000. Its totient is φ = 2871950620.

The previous prime is 2873869307. The next prime is 2873869321. The reversal of 2873869309 is 9039683782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2873869309 - 2¹ = 2873869307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2873869309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2873869307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957097 + ... + 960094.

It is an arithmetic number, because the mean of its divisors is an integer number (718947000).

Almost surely, 2^2873869309 is an apocalyptic number.

It is an amenable number.

2873869309 is a deficient number, since it is larger than the sum of its proper divisors (1918691).

2873869309 is a wasteful number, since it uses less digits than its factorization.

2873869309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918690.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 2873869309 is about 53608.4816890014. The cubic root of 2873869309 is about 1421.7470576689.

The spelling of 2873869309 in words is "two billion, eight hundred seventy-three million, eight hundred sixty-nine thousand, three hundred nine".