8305223689 has 27 divisors (see below), whose sum is σ = 9906873543. Its totient is φ = 6942147408.

The previous prime is 8305223687. The next prime is 8305223699. The reversal of 8305223689 is 9863225038.

The square root of 8305223689 is 91133.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1431487225 + 6873736464 = 37835^2 + 82908^2 .

It is not a de Polignac number, because 8305223689 - 2¹ = 8305223687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8305223683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29982619 + ... + 29982895.

Almost surely, 2^8305223689 is an apocalyptic number.

8305223689 is the 91133-rd square number.

8305223689 is the 45567-th centered octagonal number.

It is an amenable number.

8305223689 is a deficient number, since it is larger than the sum of its proper divisors (1601649854).

8305223689 is an frugal number, since it uses more digits than its factorization.

8305223689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The cubic root of 8305223689 is about 2025.1185167844.

The spelling of 8305223689 in words is "eight billion, three hundred five million, two hundred twenty-three thousand, six hundred eighty-nine".