9712873305 has 12 divisors (see below), whose sum is σ = 16835647140. Its totient is φ = 5180199072.

The previous prime is 9712873273. The next prime is 9712873327. The reversal of 9712873305 is 5033782179.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5372303616 + 4340569689 = 73296^2 + 65883^2 .

It is not a de Polignac number, because 9712873305 - 2⁵ = 9712873273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 215841629 = 9712873305 / (9 + 7 + 1 + 2 + 8 + 7 + 3 + 3 + 0 + 5).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107920770 + ... + 107920859.

It is an arithmetic number, because the mean of its divisors is an integer number (1402970595).

Almost surely, 2^9712873305 is an apocalyptic number.

It is an amenable number.

9712873305 is a deficient number, since it is larger than the sum of its proper divisors (7122773835).

9712873305 is a wasteful number, since it uses less digits than its factorization.

9712873305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215841640 (or 215841637 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 9712873305 is about 98553.9106530025. The cubic root of 9712873305 is about 2133.6142729921.

The spelling of 9712873305 in words is "nine billion, seven hundred twelve million, eight hundred seventy-three thousand, three hundred five".