8572920 has 64 divisors (see below), whose sum is σ = 25920000. Its totient is φ = 2268288.

The previous prime is 8572903. The next prime is 8572961. The reversal of 8572920 is 292758.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23701 + ... + 24059.

It is an arithmetic number, because the mean of its divisors is an integer number (405000).

Almost surely, 2^8572920 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 8572920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12960000).

8572920 is an abundant number, since it is smaller than the sum of its proper divisors (17347080).

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

8572920 is a wasteful number, since it uses less digits than its factorization.

8572920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 8572920 is about 2927.9549176857. The cubic root of 8572920 is about 204.6646907940.

The spelling of 8572920 in words is "eight million, five hundred seventy-two thousand, nine hundred twenty".