9621697716 has 72 divisors (see below), whose sum is σ = 24909044160. Its totient is φ = 3129888384.

The previous prime is 9621697661. The next prime is 9621697741. The reversal of 9621697716 is 6177961269.

9621697716 is a `hidden beast` number, since 9 + 621 + 6 + 9 + 7 + 7 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2488801 + ... + 2492663.

Almost surely, 2^9621697716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9621697716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12454522080).

9621697716 is an abundant number, since it is smaller than the sum of its proper divisors (15287346444).

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

9621697716 is a wasteful number, since it uses less digits than its factorization.

9621697716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525 (or 5520 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 9621697716 is about 98090.2529102663. The cubic root of 9621697716 is about 2126.9171324235.

The spelling of 9621697716 in words is "nine billion, six hundred twenty-one million, six hundred ninety-seven thousand, seven hundred sixteen".