8720722030 has 64 divisors (see below), whose sum is σ = 17009766720. Its totient is φ = 3207859200.

The previous prime is 8720721991. The next prime is 8720722061. The reversal of 8720722030 is 302270278.

8720722030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8720721983 and 8720722001.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3661440 + ... + 3663820.

It is an arithmetic number, because the mean of its divisors is an integer number (265777605).

Almost surely, 2^8720722030 is an apocalyptic number.

8720722030 is a deficient number, since it is larger than the sum of its proper divisors (8289044690).

8720722030 is a wasteful number, since it uses less digits than its factorization.

8720722030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 8720722030 is about 93384.8062052923. The cubic root of 8720722030 is about 2058.3417413408.

The spelling of 8720722030 in words is "eight billion, seven hundred twenty million, seven hundred twenty-two thousand, thirty".