8343020961 has 24 divisors (see below), whose sum is σ = 13501897344. Its totient is φ = 4919715360.

The previous prime is 8343020957. The next prime is 8343020971. The reversal of 8343020961 is 1690203438.

It is not a de Polignac number, because 8343020961 - 2² = 8343020957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8343020911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135161 + ... + 1142486.

It is an arithmetic number, because the mean of its divisors is an integer number (562579056).

Almost surely, 2^8343020961 is an apocalyptic number.

It is an amenable number.

8343020961 is a deficient number, since it is larger than the sum of its proper divisors (5158876383).

8343020961 is a wasteful number, since it uses less digits than its factorization.

8343020961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277701 (or 2277698 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 8343020961 is about 91340.1388273523. The cubic root of 8343020961 is about 2028.1859890637.

The spelling of 8343020961 in words is "eight billion, three hundred forty-three million, twenty thousand, nine hundred sixty-one".