8439648 has 96 divisors (see below), whose sum is σ = 26691840. Its totient is φ = 2280960.

The previous prime is 8439647. The next prime is 8439659. The reversal of 8439648 is 8469348.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8439647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12438 + ... + 13098.

It is an arithmetic number, because the mean of its divisors is an integer number (278040).

Almost surely, 2^8439648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8439648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13345920).

8439648 is an abundant number, since it is smaller than the sum of its proper divisors (18252192).

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

8439648 is a wasteful number, since it uses less digits than its factorization.

8439648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 692 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 8439648 is about 2905.1072269367. The cubic root of 8439648 is about 203.5985955389.

The spelling of 8439648 in words is "eight million, four hundred thirty-nine thousand, six hundred forty-eight".