8605709688 has 64 divisors (see below), whose sum is σ = 21946943520. Its totient is φ = 2811225600.

The previous prime is 8605709681. The next prime is 8605709701. The reversal of 8605709688 is 8869075068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8605709681) 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, 394918 + ... + 416138.

Almost surely, 2^8605709688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8605709688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10973471760).

8605709688 is an abundant number, since it is smaller than the sum of its proper divisors (13341233832).

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

8605709688 is a wasteful number, since it uses less digits than its factorization.

8605709688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21568 (or 21564 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The square root of 8605709688 is about 92766.9644216086. The cubic root of 8605709688 is about 2049.2529253203.

The spelling of 8605709688 in words is "eight billion, six hundred five million, seven hundred nine thousand, six hundred eighty-eight".