9909099 has 12 divisors (see below), whose sum is σ = 14527656. Its totient is φ = 6507072.

The previous prime is 9909091. The next prime is 9909139.

9909099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9909099 - 2³ = 9909091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9909091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7614 + ... + 8819.

It is an arithmetic number, because the mean of its divisors is an integer number (1210638).

Almost surely, 2^9909099 is an apocalyptic number.

9909099 is a deficient number, since it is larger than the sum of its proper divisors (4618557).

9909099 is a wasteful number, since it uses less digits than its factorization.

9909099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506 (or 16503 counting only the distinct ones).

The product of its (nonzero) digits is 59049, while the sum is 45.

The square root of 9909099 is about 3147.8721384453. The cubic root of 9909099 is about 214.7886800522.

The spelling of 9909099 in words is "nine million, nine hundred nine thousand, ninety-nine".