9099000090 has 48 divisors (see below), whose sum is σ = 23843708928. Its totient is φ = 2407291488.

The previous prime is 9099000089. The next prime is 9099000133. The reversal of 9099000090 is 900009909.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386602 + ... + 409461.

It is an arithmetic number, because the mean of its divisors is an integer number (496743936).

Almost surely, 2^9099000090 is an apocalyptic number.

9099000090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9099000090 is an abundant number, since it is smaller than the sum of its proper divisors (14744708838).

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

9099000090 is a wasteful number, since it uses less digits than its factorization.

9099000090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796203 (or 796200 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 36.

The square root of 9099000090 is about 95388.6790452620. The cubic root of 9099000090 is about 2087.6830080391.

Adding to 9099000090 its reverse (900009909), we get a palindrome (9999009999).

The spelling of 9099000090 in words is "nine billion, ninety-nine million, ninety", and thus it is an aban number and an uban number.