3888839 has 4 divisors (see below), whose sum is σ = 3894360. Its totient is φ = 3883320.

The previous prime is 3888823. The next prime is 3888847. The reversal of 3888839 is 9388883.

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

It is a cyclic number.

It is not a de Polignac number, because 3888839 - 2⁴ = 3888823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3888793 and 3888802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3888889) 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, 1517 + ... + 3174.

It is an arithmetic number, because the mean of its divisors is an integer number (973590).

Almost surely, 2^3888839 is an apocalyptic number.

3888839 is a deficient number, since it is larger than the sum of its proper divisors (5521).

3888839 is an equidigital number, since it uses as much as digits as its factorization.

3888839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520.

The product of its digits is 331776, while the sum is 47.

The square root of 3888839 is about 1972.0139451840. The cubic root of 3888839 is about 157.2557935491.

The spelling of 3888839 in words is "three million, eight hundred eighty-eight thousand, eight hundred thirty-nine".