8712570 has 16 divisors (see below), whose sum is σ = 20910240. Its totient is φ = 2323344.

The previous prime is 8712547. The next prime is 8712577. The reversal of 8712570 is 752178.

It is a happy number.

8712570 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 290419 = 8712570 / (8 + 7 + 1 + 2 + 5 + 7 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8712577) 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, 145180 + ... + 145239.

It is an arithmetic number, because the mean of its divisors is an integer number (1306890).

Almost surely, 2^8712570 is an apocalyptic number.

8712570 is an abundant number, since it is smaller than the sum of its proper divisors (12197670).

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

8712570 is a wasteful number, since it uses less digits than its factorization.

8712570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290429.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 8712570 is about 2951.7062862013. The cubic root of 8712570 is about 205.7700170044.

The spelling of 8712570 in words is "eight million, seven hundred twelve thousand, five hundred seventy".