8446320189 has 12 divisors (see below), whose sum is σ = 12220821756. Its totient is φ = 5621380992.

The previous prime is 8446320161. The next prime is 8446320217. The reversal of 8446320189 is 9810236448.

It is a happy number.

8446320189 is a `hidden beast` number, since 8 + 4 + 4 + 632 + 0 + 1 + 8 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (8446320161) and next prime (8446320217).

It can be written as a sum of positive squares in 2 ways, for example, as 4125492900 + 4320827289 = 64230^2 + 65733^2 .

It is not a de Polignac number, because 8446320189 - 2¹² = 8446316093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8446320139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785962 + ... + 796635.

It is an arithmetic number, because the mean of its divisors is an integer number (1018401813).

Almost surely, 2^8446320189 is an apocalyptic number.

It is an amenable number.

8446320189 is a deficient number, since it is larger than the sum of its proper divisors (3774501567).

8446320189 is a wasteful number, since it uses less digits than its factorization.

8446320189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583196 (or 1583193 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 8446320189 is about 91903.8638415165. The cubic root of 8446320189 is about 2036.5223484083.

The spelling of 8446320189 in words is "eight billion, four hundred forty-six million, three hundred twenty thousand, one hundred eighty-nine".