9097997909 has 16 divisors (see below), whose sum is σ = 12215495040. Its totient is φ = 6544013760.

The previous prime is 9097997891. The next prime is 9097997911.

9097997909 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 9097997909 - 2¹⁶ = 9097932373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9097997929) 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, 4543454 + ... + 4545455.

It is an arithmetic number, because the mean of its divisors is an integer number (763468440).

Almost surely, 2^9097997909 is an apocalyptic number.

It is an amenable number.

9097997909 is a deficient number, since it is larger than the sum of its proper divisors (3117497131).

9097997909 is a wasteful number, since it uses less digits than its factorization.

9097997909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088940.

The product of its (nonzero) digits is 26040609, while the sum is 68.

The square root of 9097997909 is about 95383.4257562602. The cubic root of 9097997909 is about 2087.6063581126.

The spelling of 9097997909 in words is "nine billion, ninety-seven million, nine hundred ninety-seven thousand, nine hundred nine".