8473656289 has 12 divisors (see below), whose sum is σ = 9893769300. Its totient is φ = 7236122208.

The previous prime is 8473656277. The next prime is 8473656311. The reversal of 8473656289 is 9826563748.

It can be written as a sum of positive squares in 2 ways, for example, as 3881290000 + 4592366289 = 62300^2 + 67767^2 .

It is not a de Polignac number, because 8473656289 - 2⁷ = 8473656161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8473656229) by changing a digit.

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, 308254 + ... + 334615.

It is an arithmetic number, because the mean of its divisors is an integer number (824480775).

Almost surely, 2^8473656289 is an apocalyptic number.

It is an amenable number.

8473656289 is a deficient number, since it is larger than the sum of its proper divisors (1420113011).

8473656289 is a wasteful number, since it uses less digits than its factorization.

8473656289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643152 (or 643145 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 58.

The square root of 8473656289 is about 92052.4648719414. The cubic root of 8473656289 is about 2038.7170172785.

The spelling of 8473656289 in words is "eight billion, four hundred seventy-three million, six hundred fifty-six thousand, two hundred eighty-nine".