8720846611 has 4 divisors (see below), whose sum is σ = 8721565272. Its totient is φ = 8720127952.

The previous prime is 8720846597. The next prime is 8720846707. The reversal of 8720846611 is 1166480278.

8720846611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8720846611 - 2⁷ = 8720846483 is a prime.

It is a super-2 number, since 2×8720846611² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8720876611) 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 3 ways as a sum of consecutive naturals, for example, 340810 + ... + 365503.

It is an arithmetic number, because the mean of its divisors is an integer number (2180391318).

Almost surely, 2^8720846611 is an apocalyptic number.

8720846611 is a deficient number, since it is larger than the sum of its proper divisors (718661).

8720846611 is a wasteful number, since it uses less digits than its factorization.

8720846611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718660.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 8720846611 is about 93385.4732332604. The cubic root of 8720846611 is about 2058.3515428630.

The spelling of 8720846611 in words is "eight billion, seven hundred twenty million, eight hundred forty-six thousand, six hundred eleven".