3863808 has 144 divisors (see below), whose sum is σ = 12591040. Its totient is φ = 1161216.

The previous prime is 3863803. The next prime is 3863831. The reversal of 3863808 is 8083683.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3863803) 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, 89835 + ... + 89877.

Almost surely, 2^3863808 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 3863808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6295520).

3863808 is an abundant number, since it is smaller than the sum of its proper divisors (8727232).

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

3863808 is a wasteful number, since it uses less digits than its factorization.

3863808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 3863808 is about 1965.6571420266. The cubic root of 3863808 is about 156.9176681660.

The spelling of 3863808 in words is "three million, eight hundred sixty-three thousand, eight hundred eight".