2709889073 has 4 divisors (see below), whose sum is σ = 2721133668. Its totient is φ = 2698644480.

The previous prime is 2709889027. The next prime is 2709889081. The reversal of 2709889073 is 3709889072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2349534784 + 360354289 = 48472^2 + 18983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2709889073 - 2⁶ = 2709889009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2709889673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5621936 + ... + 5622417.

It is an arithmetic number, because the mean of its divisors is an integer number (680283417).

Almost surely, 2^2709889073 is an apocalyptic number.

It is an amenable number.

2709889073 is a deficient number, since it is larger than the sum of its proper divisors (11244595).

2709889073 is a wasteful number, since it uses less digits than its factorization.

2709889073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244594.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 2709889073 is about 52056.5949040081. The cubic root of 2709889073 is about 1394.1746162041.

Subtracting 2709889073 from its reverse (3709889072), we obtain a palindrome (999999999).

The spelling of 2709889073 in words is "two billion, seven hundred nine million, eight hundred eighty-nine thousand, seventy-three".