3868648 has 48 divisors (see below), whose sum is σ = 8618400. Its totient is φ = 1622880.

The previous prime is 3868619. The next prime is 3868649. The reversal of 3868648 is 8468683.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3868649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27763 + ... + 27901.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

Almost surely, 2^3868648 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 3868648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4309200).

3868648 is an abundant number, since it is smaller than the sum of its proper divisors (4749752).

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

3868648 is a wasteful number, since it uses less digits than its factorization.

3868648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 219 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 3868648 is about 1966.8878971614. The cubic root of 3868648 is about 156.9831618114.

It can be divided in two parts, 38 and 68648, that added together give a palindrome (68686).

The spelling of 3868648 in words is "three million, eight hundred sixty-eight thousand, six hundred forty-eight".