8521608 has 32 divisors (see below), whose sum is σ = 21456000. Its totient is φ = 2820288.

The previous prime is 8521603. The next prime is 8521613. The reversal of 8521608 is 8061258.

It is an interprime number because it is at equal distance from previous prime (8521603) and next prime (8521613).

It is not an unprimeable number, because it can be changed into a prime (8521603) 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 7 ways as a sum of consecutive naturals, for example, 2385 + ... + 4767.

It is an arithmetic number, because the mean of its divisors is an integer number (670500).

Almost surely, 2^8521608 is an apocalyptic number.

It is an amenable number.

8521608 is an abundant number, since it is smaller than the sum of its proper divisors (12934392).

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

8521608 is a wasteful number, since it uses less digits than its factorization.

8521608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 8521608 is about 2919.1793367315. The cubic root of 8521608 is about 204.2555428872.

The spelling of 8521608 in words is "eight million, five hundred twenty-one thousand, six hundred eight".