8000722943 has 4 divisors (see below), whose sum is σ = 8001522648. Its totient is φ = 7999923240.

The previous prime is 8000722921. The next prime is 8000722957. The reversal of 8000722943 is 3492270008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8000722943 - 2¹⁸ = 8000460799 is a prime.

It is a super-2 number, since 2×8000722943² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8000722963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384653 + ... + 404918.

It is an arithmetic number, because the mean of its divisors is an integer number (2000380662).

Almost surely, 2^8000722943 is an apocalyptic number.

8000722943 is a deficient number, since it is larger than the sum of its proper divisors (799705).

8000722943 is a wasteful number, since it uses less digits than its factorization.

8000722943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799704.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 8000722943 is about 89446.7603829228. The cubic root of 8000722943 is about 2000.0602434353.

The spelling of 8000722943 in words is "eight billion, seven hundred twenty-two thousand, nine hundred forty-three".