9986899 has 16 divisors (see below), whose sum is σ = 11354112. Its totient is φ = 8715168.

The previous prime is 9986897. The next prime is 9986917.

9986899 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 9986899 - 2¹ = 9986897 is a prime.

It is a Duffinian number.

9986899 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9986897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37842 + ... + 38104.

It is an arithmetic number, because the mean of its divisors is an integer number (709632).

Almost surely, 2^9986899 is an apocalyptic number.

9986899 is a deficient number, since it is larger than the sum of its proper divisors (1367213).

9986899 is a wasteful number, since it uses less digits than its factorization.

9986899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 2519424, while the sum is 58.

The square root of 9986899 is about 3160.2055312906. The cubic root of 9986899 is about 215.3493437238.

The spelling of 9986899 in words is "nine million, nine hundred eighty-six thousand, eight hundred ninety-nine".