8528013 has 12 divisors (see below), whose sum is σ = 13265980. Its totient is φ = 5247936.

The previous prime is 8527991. The next prime is 8528021. The reversal of 8528013 is 3108258.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4678569 + 3849444 = 2163^2 + 1962^2 .

It is not a de Polignac number, because 8528013 - 2¹² = 8523917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8528063) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 36328 + ... + 36561.

Almost surely, 2^8528013 is an apocalyptic number.

It is an amenable number.

8528013 is a deficient number, since it is larger than the sum of its proper divisors (4737967).

8528013 is a wasteful number, since it uses less digits than its factorization.

8528013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72908 (or 72905 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 8528013 is about 2920.2761855688. The cubic root of 8528013 is about 204.3067041672.

The spelling of 8528013 in words is "eight million, five hundred twenty-eight thousand, thirteen".