8712299520 has 704 divisors, whose sum is σ = 33957273600. Its totient is φ = 2110095360.

The previous prime is 8712299447. The next prime is 8712299521. The reversal of 8712299520 is 259922178.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8712299521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81423307 + ... + 81423413.

Almost surely, 2^8712299520 is an apocalyptic number.

8712299520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8712299520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16978636800).

8712299520 is an abundant number, since it is smaller than the sum of its proper divisors (25244974080).

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

8712299520 is a wasteful number, since it uses less digits than its factorization.

8712299520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 8712299520 is about 93339.6995924028. The cubic root of 8712299520 is about 2057.6788761932.

The spelling of 8712299520 in words is "eight billion, seven hundred twelve million, two hundred ninety-nine thousand, five hundred twenty".