9839663696 has 40 divisors (see below), whose sum is σ = 19602439560. Its totient is φ = 4782675456.

The previous prime is 9839663693. The next prime is 9839663719. The reversal of 9839663696 is 6963669389.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4821358096 + 5018305600 = 69436^2 + 70840^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9839663693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39206 + ... + 145658.

It is an arithmetic number, because the mean of its divisors is an integer number (490060989).

Almost surely, 2^9839663696 is an apocalyptic number.

It is an amenable number.

9839663696 is a deficient number, since it is larger than the sum of its proper divisors (9762775864).

9839663696 is a wasteful number, since it uses less digits than its factorization.

9839663696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106623 (or 106617 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 65.

The square root of 9839663696 is about 99195.0789908451. The cubic root of 9839663696 is about 2142.8581265028.

The spelling of 9839663696 in words is "nine billion, eight hundred thirty-nine million, six hundred sixty-three thousand, six hundred ninety-six".