8684040 has 32 divisors (see below), whose sum is σ = 26052480. Its totient is φ = 2315712.

The previous prime is 8684029. The next prime is 8684047. The reversal of 8684040 is 404868.

8684040 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8683989 and 8684007.

It is not an unprimeable number, because it can be changed into a prime (8684047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36064 + ... + 36303.

It is an arithmetic number, because the mean of its divisors is an integer number (814140).

Almost surely, 2^8684040 is an apocalyptic number.

It is an amenable number.

8684040 is an abundant number, since it is smaller than the sum of its proper divisors (17368440).

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

8684040 is a wasteful number, since it uses less digits than its factorization.

8684040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72381 (or 72377 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 8684040 is about 2946.8695254456. The cubic root of 8684040 is about 205.5451679950.

The spelling of 8684040 in words is "eight million, six hundred eighty-four thousand, forty".