9989099 has 4 divisors (see below), whose sum is σ = 10311360. Its totient is φ = 9666840.

The previous prime is 9989071. The next prime is 9989123. The reversal of 9989099 is 9909899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9909899 = 1619 ⋅6121.

It is a cyclic number.

It is not a de Polignac number, because 9989099 - 2²⁰ = 8940523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9989099.

It is not an unprimeable number, because it can be changed into a prime (9989039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161084 + ... + 161145.

It is an arithmetic number, because the mean of its divisors is an integer number (2577840).

Almost surely, 2^9989099 is an apocalyptic number.

9989099 is a deficient number, since it is larger than the sum of its proper divisors (322261).

9989099 is a wasteful number, since it uses less digits than its factorization.

9989099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322260.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 9989099 is about 3160.5535907496. The cubic root of 9989099 is about 215.3651555646.

It can be divided in two parts, 99 and 89099, that added together give a palindrome (89198).

The spelling of 9989099 in words is "nine million, nine hundred eighty-nine thousand, ninety-nine".