8220443967 has 6 divisors (see below), whose sum is σ = 11873974632. Its totient is φ = 5480295972.

The previous prime is 8220443963. The next prime is 8220444019. The reversal of 8220443967 is 7693440228.

8220443967 is a `hidden beast` number, since 8 + 2 + 204 + 439 + 6 + 7 = 666.

8220443967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8220443967 - 2² = 8220443963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220443963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456691323 + ... + 456691340.

It is an arithmetic number, because the mean of its divisors is an integer number (1978995772).

Almost surely, 2^8220443967 is an apocalyptic number.

8220443967 is a deficient number, since it is larger than the sum of its proper divisors (3653530665).

8220443967 is a wasteful number, since it uses less digits than its factorization.

8220443967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913382669 (or 913382666 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8220443967 is about 90666.6640337009. The cubic root of 8220443967 is about 2018.2041326378.

The spelling of 8220443967 in words is "eight billion, two hundred twenty million, four hundred forty-three thousand, nine hundred sixty-seven".