8443321077 has 4 divisors (see below), whose sum is σ = 11257761440. Its totient is φ = 5628880716.

The previous prime is 8443321067. The next prime is 8443321121. The reversal of 8443321077 is 7701233448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8443321077 - 2²⁴ = 8426543861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8443321037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407220177 + ... + 1407220182.

It is an arithmetic number, because the mean of its divisors is an integer number (2814440360).

Almost surely, 2^8443321077 is an apocalyptic number.

It is an amenable number.

8443321077 is a deficient number, since it is larger than the sum of its proper divisors (2814440363).

8443321077 is a wasteful number, since it uses less digits than its factorization.

8443321077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814440362.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 8443321077 is about 91887.5458209653. The cubic root of 8443321077 is about 2036.2812776804.

The spelling of 8443321077 in words is "eight billion, four hundred forty-three million, three hundred twenty-one thousand, seventy-seven".