8871540 has 24 divisors (see below), whose sum is σ = 24840480. Its totient is φ = 2365728.

The previous prime is 8871509. The next prime is 8871547. The reversal of 8871540 is 451788.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8871547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73870 + ... + 73989.

It is an arithmetic number, because the mean of its divisors is an integer number (1035020).

Almost surely, 2^8871540 is an apocalyptic number.

It is an amenable number.

8871540 is an abundant number, since it is smaller than the sum of its proper divisors (15968940).

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

8871540 is a wasteful number, since it uses less digits than its factorization.

8871540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147871 (or 147869 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 8871540 is about 2978.5130518432. The cubic root of 8871540 is about 207.0139783788.

The spelling of 8871540 in words is "eight million, eight hundred seventy-one thousand, five hundred forty".