8939983361 has 16 divisors (see below), whose sum is σ = 9109016784. Its totient is φ = 8772900864.

The previous prime is 8939983309. The next prime is 8939983363. The reversal of 8939983361 is 1633899398.

It can be written as a sum of positive squares in 8 ways, for example, as 350400961 + 8589582400 = 18719^2 + 92680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8939983361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8939983361.

It is not an unprimeable number, because it can be changed into a prime (8939983363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10480211 + ... + 10481063.

It is an arithmetic number, because the mean of its divisors is an integer number (569313549).

Almost surely, 2^8939983361 is an apocalyptic number.

It is an amenable number.

8939983361 is a deficient number, since it is larger than the sum of its proper divisors (169033423).

8939983361 is a wasteful number, since it uses less digits than its factorization.

8939983361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780.

The product of its digits is 7558272, while the sum is 59.

The square root of 8939983361 is about 94551.4852395244. The cubic root of 8939983361 is about 2075.4498167222.

The spelling of 8939983361 in words is "eight billion, nine hundred thirty-nine million, nine hundred eighty-three thousand, three hundred sixty-one".