9876540 has 48 divisors (see below), whose sum is σ = 27955872. Its totient is φ = 2605056.

The previous prime is 9876527. The next prime is 9876553. The reversal of 9876540 is 456789.

9876540 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9876527) and next prime (9876553).

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4972 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (582414).

Almost surely, 2^9876540 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 9876540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13977936).

9876540 is an abundant number, since it is smaller than the sum of its proper divisors (18079332).

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

9876540 is a wasteful number, since it uses less digits than its factorization.

9876540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 9876540 is about 3142.6962945853. The cubic root of 9876540 is about 214.5531733358.

The spelling of 9876540 in words is "nine million, eight hundred seventy-six thousand, five hundred forty".