9681924 has 48 divisors (see below), whose sum is σ = 26163200. Its totient is φ = 2729376.

The previous prime is 9681913. The next prime is 9681929. The reversal of 9681924 is 4291869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9681929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5907 + ... + 7365.

Almost surely, 2^9681924 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 9681924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13081600).

9681924 is an abundant number, since it is smaller than the sum of its proper divisors (16481276).

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

9681924 is a wasteful number, since it uses less digits than its factorization.

9681924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1550 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 9681924 is about 3111.5790203689. The cubic root of 9681924 is about 213.1345663815.

Adding to 9681924 its product of digits (31104), we get a triangular number (9713028 = T₄₄₀₇).

It can be divided in two parts, 9 and 681924, that multiplied together give a palindrome (6137316).

The spelling of 9681924 in words is "nine million, six hundred eighty-one thousand, nine hundred twenty-four".