8973833661 has 12 divisors (see below), whose sum is σ = 13959296988. Its totient is φ = 5522359104.

The previous prime is 8973833629. The next prime is 8973833669. The reversal of 8973833661 is 1663383798.

It can be written as a sum of positive squares in 2 ways, for example, as 4596026436 + 4377807225 = 67794^2 + 66165^2 .

It is not a de Polignac number, because 8973833661 - 2⁵ = 8973833629 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8973833598 and 8973833607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8973833669) 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, 38349600 + ... + 38349833.

It is an arithmetic number, because the mean of its divisors is an integer number (1163274749).

Almost surely, 2^8973833661 is an apocalyptic number.

It is an amenable number.

8973833661 is a deficient number, since it is larger than the sum of its proper divisors (4985463327).

8973833661 is a wasteful number, since it uses less digits than its factorization.

8973833661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76699452 (or 76699449 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 8973833661 is about 94730.3207056748. The cubic root of 8973833661 is about 2078.0660078126.

The spelling of 8973833661 in words is "eight billion, nine hundred seventy-three million, eight hundred thirty-three thousand, six hundred sixty-one".