8747968729 has 4 divisors (see below), whose sum is σ = 8751528720. Its totient is φ = 8744408740.

The previous prime is 8747968721. The next prime is 8747968769. The reversal of 8747968729 is 9278697478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8747968729 - 2³ = 8747968721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8747968721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776307 + ... + 1781224.

It is an arithmetic number, because the mean of its divisors is an integer number (2187882180).

Almost surely, 2^8747968729 is an apocalyptic number.

It is an amenable number.

8747968729 is a deficient number, since it is larger than the sum of its proper divisors (3559991).

8747968729 is a wasteful number, since it uses less digits than its factorization.

8747968729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559990.

The product of its digits is 85349376, while the sum is 67.

The square root of 8747968729 is about 93530.5764389379. The cubic root of 8747968729 is about 2060.4831814244.

The spelling of 8747968729 in words is "eight billion, seven hundred forty-seven million, nine hundred sixty-eight thousand, seven hundred twenty-nine".