9681534 has 48 divisors (see below), whose sum is σ = 22997520. Its totient is φ = 2929920.

The previous prime is 9681533. The next prime is 9681547. The reversal of 9681534 is 4351869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9681533) 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, 8329 + ... + 9419.

It is an arithmetic number, because the mean of its divisors is an integer number (479115).

Almost surely, 2^9681534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9681534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11498760).

9681534 is an abundant number, since it is smaller than the sum of its proper divisors (13315986).

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

9681534 is a wasteful number, since it uses less digits than its factorization.

9681534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1142 counting only the distinct ones).

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

The square root of 9681534 is about 3111.5163505918. The cubic root of 9681534 is about 213.1317045675.

The spelling of 9681534 in words is "nine million, six hundred eighty-one thousand, five hundred thirty-four".