8439712 has 24 divisors (see below), whose sum is σ = 17339616. Its totient is φ = 4036032.

The previous prime is 8439709. The next prime is 8439713. The reversal of 8439712 is 2179348.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8439713) 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, 4998 + ... + 6469.

It is an arithmetic number, because the mean of its divisors is an integer number (722484).

Almost surely, 2^8439712 is an apocalyptic number.

It is an amenable number.

8439712 is an abundant number, since it is smaller than the sum of its proper divisors (8899904).

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

8439712 is a wasteful number, since it uses less digits than its factorization.

8439712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500 (or 11492 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 8439712 is about 2905.1182419998. The cubic root of 8439712 is about 203.5991101843.

The spelling of 8439712 in words is "eight million, four hundred thirty-nine thousand, seven hundred twelve".