8500540 has 12 divisors (see below), whose sum is σ = 17851176. Its totient is φ = 3400208.

The previous prime is 8500529. The next prime is 8500549. The reversal of 8500540 is 450058.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212494 + ... + 212533.

It is an arithmetic number, because the mean of its divisors is an integer number (1487598).

Almost surely, 2^8500540 is an apocalyptic number.

It is an amenable number.

8500540 is an abundant number, since it is smaller than the sum of its proper divisors (9350636).

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

8500540 is a wasteful number, since it uses less digits than its factorization.

8500540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425036 (or 425034 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 8500540 is about 2915.5685551878. The cubic root of 8500540 is about 204.0870767568.

Adding to 8500540 its reverse (450058), we get a palindrome (8950598).

The spelling of 8500540 in words is "eight million, five hundred thousand, five hundred forty".