8284645573 has 4 divisors (see below), whose sum is σ = 8284848748. Its totient is φ = 8284442400.

The previous prime is 8284645541. The next prime is 8284645583. The reversal of 8284645573 is 3755464828.

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 6041486529 + 2243159044 = 77727^2 + 47362^2 .

It is a cyclic number.

It is not a de Polignac number, because 8284645573 - 2⁵ = 8284645541 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 8284645573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8284645583) 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 3 ways as a sum of consecutive naturals, for example, 16878 + ... + 129823.

It is an arithmetic number, because the mean of its divisors is an integer number (2071212187).

Almost surely, 2^8284645573 is an apocalyptic number.

It is an amenable number.

8284645573 is a deficient number, since it is larger than the sum of its proper divisors (203175).

8284645573 is a wasteful number, since it uses less digits than its factorization.

8284645573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203174.

The product of its digits is 6451200, while the sum is 52.

The square root of 8284645573 is about 91020.0284168270. The cubic root of 8284645573 is about 2023.4445667082. Note that the first 3 decimals are identical.

The spelling of 8284645573 in words is "eight billion, two hundred eighty-four million, six hundred forty-five thousand, five hundred seventy-three".