9216522 has 48 divisors (see below), whose sum is σ = 23000640. Its totient is φ = 2612736.

The previous prime is 9216521. The next prime is 9216523. The reversal of 9216522 is 2256129.

9216522 is a `hidden beast` number, since 9 + 2 + 1 + 652 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (9216521) and next prime (9216523).

It is not an unprimeable number, because it can be changed into a prime (9216521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24129 + ... + 24507.

It is an arithmetic number, because the mean of its divisors is an integer number (479180).

Almost surely, 2^9216522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9216522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11500320).

9216522 is an abundant number, since it is smaller than the sum of its proper divisors (13784118).

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

9216522 is a wasteful number, since it uses less digits than its factorization.

9216522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 584 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 9216522 is about 3035.8725269682. The cubic root of 9216522 is about 209.6632698735.

The spelling of 9216522 in words is "nine million, two hundred sixteen thousand, five hundred twenty-two".