8640708 has 12 divisors (see below), whose sum is σ = 20161680. Its totient is φ = 2880232.

The previous prime is 8640707. The next prime is 8640713. The reversal of 8640708 is 8070468.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×8640708³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8640701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360018 + ... + 360041.

It is an arithmetic number, because the mean of its divisors is an integer number (1680140).

Almost surely, 2^8640708 is an apocalyptic number.

It is an amenable number.

8640708 is an abundant number, since it is smaller than the sum of its proper divisors (11520972).

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

8640708 is a wasteful number, since it uses less digits than its factorization.

8640708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720066 (or 720064 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 8640708 is about 2939.5081221184. The cubic root of 8640708 is about 205.2027183693.

The spelling of 8640708 in words is "eight million, six hundred forty thousand, seven hundred eight".