8691216 has 40 divisors (see below), whose sum is σ = 23775264. Its totient is φ = 2726400.

The previous prime is 8691211. The next prime is 8691223. The reversal of 8691216 is 6121968.

It is not an unprimeable number, because it can be changed into a prime (8691211) 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, 4510 + ... + 6141.

Almost surely, 2^8691216 is an apocalyptic number.

It is an amenable number.

8691216 is an abundant number, since it is smaller than the sum of its proper divisors (15084048).

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

8691216 is a wasteful number, since it uses less digits than its factorization.

8691216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10679 (or 10673 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 8691216 is about 2948.0868372556. The cubic root of 8691216 is about 205.6017693782.

The spelling of 8691216 in words is "eight million, six hundred ninety-one thousand, two hundred sixteen".