8732120673 has 16 divisors (see below), whose sum is σ = 11929934016. Its totient is φ = 5677935360.

The previous prime is 8732120651. The next prime is 8732120693. The reversal of 8732120673 is 3760212378.

8732120673 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 8732120673 - 2⁶ = 8732120609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8732120623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648061 + ... + 661397.

It is an arithmetic number, because the mean of its divisors is an integer number (745620876).

Almost surely, 2^8732120673 is an apocalyptic number.

It is an amenable number.

8732120673 is a deficient number, since it is larger than the sum of its proper divisors (3197813343).

8732120673 is a wasteful number, since it uses less digits than its factorization.

8732120673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18704.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 8732120673 is about 93445.8167763544. The cubic root of 8732120673 is about 2059.2381536517.

The spelling of 8732120673 in words is "eight billion, seven hundred thirty-two million, one hundred twenty thousand, six hundred seventy-three".