8526820 has 36 divisors (see below), whose sum is σ = 18914364. Its totient is φ = 3228480.

The previous prime is 8526797. The next prime is 8526863. The reversal of 8526820 is 286258.

It can be written as a sum of positive squares in 2 ways, for example, as 5731236 + 2795584 = 2394^2 + 1672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6630 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (525399).

Almost surely, 2^8526820 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 8526820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9457182).

8526820 is an abundant number, since it is smaller than the sum of its proper divisors (10387544).

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

8526820 is a wasteful number, since it uses less digits than its factorization.

8526820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 8526820 is about 2920.0719169226. The cubic root of 8526820 is about 204.2971767715.

The spelling of 8526820 in words is "eight million, five hundred twenty-six thousand, eight hundred twenty".