8640016 has 40 divisors (see below), whose sum is σ = 20873664. Its totient is φ = 3365760.

The previous prime is 8640013. The next prime is 8640017. The reversal of 8640016 is 6100468.

It is not an unprimeable number, because it can be changed into a prime (8640013) 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, 2275 + ... + 4738.

Almost surely, 2^8640016 is an apocalyptic number.

It is an amenable number.

8640016 is an abundant number, since it is smaller than the sum of its proper divisors (12233648).

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

8640016 is a wasteful number, since it uses less digits than its factorization.

8640016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039 (or 7033 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8640016 is about 2939.3904129938. The cubic root of 8640016 is about 205.1972402660.

It can be divided in two parts, 86 and 40016, that multiplied together give a triangular number (3441376 = T₂₆₂₃).

The spelling of 8640016 in words is "eight million, six hundred forty thousand, sixteen".