3888385 has 4 divisors (see below), whose sum is σ = 4666068. Its totient is φ = 3110704.

The previous prime is 3888383. The next prime is 3888389. The reversal of 3888385 is 5838883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 3352561 = 732^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 3888385 - 2¹ = 3888383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3888383) 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, 388834 + ... + 388843.

It is an arithmetic number, because the mean of its divisors is an integer number (1166517).

Almost surely, 2^3888385 is an apocalyptic number.

It is an amenable number.

3888385 is a deficient number, since it is larger than the sum of its proper divisors (777683).

3888385 is an equidigital number, since it uses as much as digits as its factorization.

3888385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777682.

The product of its digits is 184320, while the sum is 43.

The square root of 3888385 is about 1971.8988310763. The cubic root of 3888385 is about 157.2496737355.

The spelling of 3888385 in words is "three million, eight hundred eighty-eight thousand, three hundred eighty-five".