9849697909 has 16 divisors (see below), whose sum is σ = 10055485440. Its totient is φ = 9646698240.

The previous prime is 9849697903. The next prime is 9849697933. The reversal of 9849697909 is 9097969489.

It is a cyclic number.

It is not a de Polignac number, because 9849697909 - 2³ = 9849697901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9849697901) 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, 3475357 + ... + 3478189.

It is an arithmetic number, because the mean of its divisors is an integer number (628467840).

Almost surely, 2^9849697909 is an apocalyptic number.

It is an amenable number.

9849697909 is a deficient number, since it is larger than the sum of its proper divisors (205787531).

9849697909 is a wasteful number, since it uses less digits than its factorization.

9849697909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 79361856, while the sum is 70.

The square root of 9849697909 is about 99245.6442822555. The cubic root of 9849697909 is about 2143.5862879069.

The spelling of 9849697909 in words is "nine billion, eight hundred forty-nine million, six hundred ninety-seven thousand, nine hundred nine".