8522920 has 64 divisors (see below), whose sum is σ = 22320000. Its totient is φ = 2868480.

The previous prime is 8522909. The next prime is 8522939. The reversal of 8522920 is 292258.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16831 + ... + 17329.

It is an arithmetic number, because the mean of its divisors is an integer number (348750).

Almost surely, 2^8522920 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 8522920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11160000).

8522920 is an abundant number, since it is smaller than the sum of its proper divisors (13797080).

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

8522920 is a wasteful number, since it uses less digits than its factorization.

8522920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8522920 is about 2919.4040487743. The cubic root of 8522920 is about 204.2660248495.

It can be divided in two parts, 85 and 22920, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 8522920 in words is "eight million, five hundred twenty-two thousand, nine hundred twenty".