8520704 has 44 divisors (see below), whose sum is σ = 17465004. Its totient is φ = 4153344.

The previous prime is 8520679. The next prime is 8520709. The reversal of 8520704 is 4070258.

It can be written as a sum of positive squares in 2 ways, for example, as 4326400 + 4194304 = 2080^2 + 2048^2 .

It is not an unprimeable number, because it can be changed into a prime (8520709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54194 + ... + 54350.

Almost surely, 2^8520704 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 8520704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8732502).

8520704 is an abundant number, since it is smaller than the sum of its proper divisors (8944300).

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

8520704 is a wasteful number, since it uses less digits than its factorization.

8520704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 8520704 is about 2919.0244945872. The cubic root of 8520704 is about 204.2483199335.

The spelling of 8520704 in words is "eight million, five hundred twenty thousand, seven hundred four".