8487140 has 24 divisors (see below), whose sum is σ = 18438840. Its totient is φ = 3277568.

The previous prime is 8487139. The next prime is 8487163. The reversal of 8487140 is 417848.

It can be written as a sum of positive squares in 4 ways, for example, as 7396 + 8479744 = 86^2 + 2912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8487097 and 8487106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6737 + ... + 7896.

It is an arithmetic number, because the mean of its divisors is an integer number (768285).

Almost surely, 2^8487140 is an apocalyptic number.

It is an amenable number.

8487140 is an abundant number, since it is smaller than the sum of its proper divisors (9951700).

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

8487140 is a wasteful number, since it uses less digits than its factorization.

8487140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14671 (or 14669 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 8487140 is about 2913.2696407988. The cubic root of 8487140 is about 203.9797814128.

The spelling of 8487140 in words is "eight million, four hundred eighty-seven thousand, one hundred forty".