8921097216 has 176 divisors, whose sum is σ = 27570633600. Its totient is φ = 2844205056.

The previous prime is 8921097161. The next prime is 8921097223. The reversal of 8921097216 is 6127901298.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628890 + ... + 642918.

Almost surely, 2^8921097216 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 8921097216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13785316800).

8921097216 is an abundant number, since it is smaller than the sum of its proper divisors (18649536384).

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

8921097216 is a wasteful number, since it uses less digits than its factorization.

8921097216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081 (or 14057 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 8921097216 is about 94451.5601565162. The cubic root of 8921097216 is about 2073.9872904863.

The spelling of 8921097216 in words is "eight billion, nine hundred twenty-one million, ninety-seven thousand, two hundred sixteen".