9947668696 has 32 divisors (see below), whose sum is σ = 21665890080. Its totient is φ = 4193395200.

The previous prime is 9947668693. The next prime is 9947668697. The reversal of 9947668696 is 6968667499.

It is a super-2 number, since 2×9947668696² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947668693) 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, 1452625 + ... + 1459456.

It is an arithmetic number, because the mean of its divisors is an integer number (677059065).

Almost surely, 2^9947668696 is an apocalyptic number.

It is an amenable number.

9947668696 is an abundant number, since it is smaller than the sum of its proper divisors (11718221384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9947668696 is a wasteful number, since it uses less digits than its factorization.

9947668696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912155 (or 2912151 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 70.

The square root of 9947668696 is about 99738.0002606830. Note that the first 3 decimals coincide. The cubic root of 9947668696 is about 2150.6699693931.

The spelling of 9947668696 in words is "nine billion, nine hundred forty-seven million, six hundred sixty-eight thousand, six hundred ninety-six".