8772216891 has 8 divisors (see below), whose sum is σ = 12012405264. Its totient is φ = 5690086560.

The previous prime is 8772216883. The next prime is 8772216899. The reversal of 8772216891 is 1986122778.

8772216891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8772216883) and next prime (8772216899).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8772216891 - 2³ = 8772216883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8772216899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39514380 + ... + 39514601.

It is an arithmetic number, because the mean of its divisors is an integer number (1501550658).

Almost surely, 2^8772216891 is an apocalyptic number.

8772216891 is a deficient number, since it is larger than the sum of its proper divisors (3240188373).

8772216891 is a wasteful number, since it uses less digits than its factorization.

8772216891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79029021.

The product of its digits is 677376, while the sum is 51.

The square root of 8772216891 is about 93660.1136610457. The cubic root of 8772216891 is about 2062.3852167820.

The spelling of 8772216891 in words is "eight billion, seven hundred seventy-two million, two hundred sixteen thousand, eight hundred ninety-one".