9679840 has 48 divisors (see below), whose sum is σ = 23133600. Its totient is φ = 3827200.

The previous prime is 9679819. The next prime is 9679847. The reversal of 9679840 is 489769.

9679840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9679847) 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, 15861 + ... + 16459.

It is an arithmetic number, because the mean of its divisors is an integer number (481950).

Almost surely, 2^9679840 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 9679840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11566800).

9679840 is an abundant number, since it is smaller than the sum of its proper divisors (13453760).

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

9679840 is a wasteful number, since it uses less digits than its factorization.

9679840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 9679840 is about 3111.2441241407. The cubic root of 9679840 is about 213.1192731295.

The spelling of 9679840 in words is "nine million, six hundred seventy-nine thousand, eight hundred forty".