9875540 has 12 divisors (see below), whose sum is σ = 20738676. Its totient is φ = 3950208.

The previous prime is 9875539. The next prime is 9875549. The reversal of 9875540 is 455789.

It can be written as a sum of positive squares in 2 ways, for example, as 5827396 + 4048144 = 2414^2 + 2012^2 .

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9875494 and 9875503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246869 + ... + 246908.

It is an arithmetic number, because the mean of its divisors is an integer number (1728223).

Almost surely, 2^9875540 is an apocalyptic number.

It is an amenable number.

9875540 is an abundant number, since it is smaller than the sum of its proper divisors (10863136).

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

9875540 is a wasteful number, since it uses less digits than its factorization.

9875540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493786 (or 493784 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 9875540 is about 3142.5371915063. The cubic root of 9875540 is about 214.5459319194.

The spelling of 9875540 in words is "nine million, eight hundred seventy-five thousand, five hundred forty".