9085217808 has 20 divisors (see below), whose sum is σ = 23470146128. Its totient is φ = 3028405920.

The previous prime is 9085217807. The next prime is 9085217849. The reversal of 9085217808 is 8087125809.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 189275371 = 9085217808 / (9 + 0 + 8 + 5 + 2 + 1 + 7 + 8 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (9085217807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94637638 + ... + 94637733.

Almost surely, 2^9085217808 is an apocalyptic number.

It is an amenable number.

9085217808 is an abundant number, since it is smaller than the sum of its proper divisors (14384928320).

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

9085217808 is a wasteful number, since it uses less digits than its factorization.

9085217808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189275382 (or 189275376 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The square root of 9085217808 is about 95316.4089126316. The cubic root of 9085217808 is about 2086.6284022058.

The spelling of 9085217808 in words is "nine billion, eighty-five million, two hundred seventeen thousand, eight hundred eight".