3663888 has 40 divisors (see below), whose sum is σ = 9725568. Its totient is φ = 1187712.

The previous prime is 3663887. The next prime is 3663893. The reversal of 3663888 is 8883663.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663887) 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, 745 + ... + 2807.

Almost surely, 2^3663888 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 3663888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4862784).

3663888 is an abundant number, since it is smaller than the sum of its proper divisors (6061680).

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

3663888 is a wasteful number, since it uses less digits than its factorization.

3663888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2105 counting only the distinct ones).

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

The square root of 3663888 is about 1914.1285223307. The cubic root of 3663888 is about 154.1632047271.

It can be divided in two parts, 36 and 63888, that multiplied together give a cube (2299968 = 132³).

The spelling of 3663888 in words is "three million, six hundred sixty-three thousand, eight hundred eighty-eight".