8713664249 has 8 divisors (see below), whose sum is σ = 9093909960. Its totient is φ = 8338736896.

The previous prime is 8713664221. The next prime is 8713664263. The reversal of 8713664249 is 9424663178.

It can be written as a sum of positive squares in 4 ways, for example, as 479916649 + 8233747600 = 21907^2 + 90740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8713664249 - 2¹⁶ = 8713598713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8713664197 and 8713664206.

It is not an unprimeable number, because it can be changed into a prime (8713664209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326242 + ... + 1332795.

It is an arithmetic number, because the mean of its divisors is an integer number (1136738745).

Almost surely, 2^8713664249 is an apocalyptic number.

It is an amenable number.

8713664249 is a deficient number, since it is larger than the sum of its proper divisors (380245711).

8713664249 is a wasteful number, since it uses less digits than its factorization.

8713664249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659179.

The product of its digits is 1741824, while the sum is 50.

The square root of 8713664249 is about 93347.0098556992. The cubic root of 8713664249 is about 2057.7863115652.

The spelling of 8713664249 in words is "eight billion, seven hundred thirteen million, six hundred sixty-four thousand, two hundred forty-nine".