8890720832 has 56 divisors (see below), whose sum is σ = 20182539264. Its totient is φ = 3806595072.

The previous prime is 8890720829. The next prime is 8890720837. The reversal of 8890720832 is 2380270988.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (8890720837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477848 + ... + 496104.

Almost surely, 2^8890720832 is an apocalyptic number.

It is an amenable number.

8890720832 is an abundant number, since it is smaller than the sum of its proper divisors (11291818432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8890720832 is a wasteful number, since it uses less digits than its factorization.

8890720832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19363 (or 19353 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 8890720832 is about 94290.6190031649. The cubic root of 8890720832 is about 2071.6306343571.

The spelling of 8890720832 in words is "eight billion, eight hundred ninety million, seven hundred twenty thousand, eight hundred thirty-two".