8500008 has 48 divisors (see below), whose sum is σ = 23365440. Its totient is φ = 2574880.

The previous prime is 8500007. The next prime is 8500021. The reversal of 8500008 is 8000058.

It is not an unprimeable number, because it can be changed into a prime (8500007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1441 + ... + 4367.

It is an arithmetic number, because the mean of its divisors is an integer number (486780).

Almost surely, 2^8500008 is an apocalyptic number.

8500008 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8500008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11682720).

8500008 is an abundant number, since it is smaller than the sum of its proper divisors (14865432).

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

8500008 is a wasteful number, since it uses less digits than its factorization.

8500008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958 (or 2943 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 8500008 is about 2915.4773194110. The cubic root of 8500008 is about 204.0828191218.

The spelling of 8500008 in words is "eight million, five hundred thousand, eight".