99000909 has 24 divisors (see below), whose sum is σ = 165739392. Its totient is φ = 55772640.

The previous prime is 99000893. The next prime is 99000917. The reversal of 99000909 is 90900099.

It is not a de Polignac number, because 99000909 - 2⁴ = 99000893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99000919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6594 + ... + 15539.

It is an arithmetic number, because the mean of its divisors is an integer number (6905808).

Almost surely, 2^99000909 is an apocalyptic number.

It is an amenable number.

99000909 is a deficient number, since it is larger than the sum of its proper divisors (66738483).

99000909 is a wasteful number, since it uses less digits than its factorization.

99000909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22217 (or 22214 counting only the distinct ones).

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

The square root of 99000909 is about 9949.9200499300. The cubic root of 99000909 is about 462.6079167702.

It can be divided in two parts, 9900090 and 9, that added together give a palindrome (9900099).

The spelling of 99000909 in words is "ninety-nine million, nine hundred nine", and thus it is an aban number.