9899005 has 16 divisors (see below), whose sum is σ = 12383280. Its totient is φ = 7587328.

The previous prime is 9899003. The next prime is 9899009. The reversal of 9899005 is 5009989.

It can be written as a sum of positive squares in 8 ways, for example, as 33124 + 9865881 = 182^2 + 3141^2 .

It is not a de Polignac number, because 9899005 - 2¹ = 9899003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33639 + ... + 33931.

It is an arithmetic number, because the mean of its divisors is an integer number (773955).

Almost surely, 2^9899005 is an apocalyptic number.

It is an amenable number.

9899005 is a deficient number, since it is larger than the sum of its proper divisors (2484275).

9899005 is a wasteful number, since it uses less digits than its factorization.

9899005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 9899005 is about 3146.2684246580. The cubic root of 9899005 is about 214.7157230817.

The spelling of 9899005 in words is "nine million, eight hundred ninety-nine thousand, five".