8540680 has 32 divisors (see below), whose sum is σ = 19359000. Its totient is φ = 3390976.

The previous prime is 8540639. The next prime is 8540683. The reversal of 8540680 is 860458.

It can be written as a sum of positive squares in 4 ways, for example, as 6563844 + 1976836 = 2562^2 + 1406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540683) 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, 5244 + ... + 6676.

Almost surely, 2^8540680 is an apocalyptic number.

It is an amenable number.

8540680 is an abundant number, since it is smaller than the sum of its proper divisors (10818320).

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

8540680 is a wasteful number, since it uses less digits than its factorization.

8540680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 8540680 is about 2922.4441825294. Note that the first 3 decimals coincide. The cubic root of 8540680 is about 204.4078091080.

The spelling of 8540680 in words is "eight million, five hundred forty thousand, six hundred eighty".