8721713 has 16 divisors (see below), whose sum is σ = 11711616. Its totient is φ = 6272640.

The previous prime is 8721701. The next prime is 8721737. The reversal of 8721713 is 3171278.

It is not a de Polignac number, because 8721713 - 2¹⁰ = 8720689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8721763) 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, 3356 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (731976).

Almost surely, 2^8721713 is an apocalyptic number.

It is an amenable number.

8721713 is a deficient number, since it is larger than the sum of its proper divisors (2989903).

8721713 is a wasteful number, since it uses less digits than its factorization.

8721713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8744.

The product of its digits is 2352, while the sum is 29.

The square root of 8721713 is about 2953.2546453024. The cubic root of 8721713 is about 205.8419704215.

The spelling of 8721713 in words is "eight million, seven hundred twenty-one thousand, seven hundred thirteen".