9816534 has 72 divisors (see below), whose sum is σ = 26378352. Its totient is φ = 2583360.

The previous prime is 9816533. The next prime is 9816551. The reversal of 9816534 is 4356189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9816533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21064 + ... + 21524.

It is an arithmetic number, because the mean of its divisors is an integer number (366366).

Almost surely, 2^9816534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9816534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13189176).

9816534 is an abundant number, since it is smaller than the sum of its proper divisors (16561818).

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

9816534 is a wasteful number, since it uses less digits than its factorization.

9816534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 486 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 9816534 is about 3133.1348518696. The cubic root of 9816534 is about 214.1177766106.

The spelling of 9816534 in words is "nine million, eight hundred sixteen thousand, five hundred thirty-four".