3828889 has 4 divisors (see below), whose sum is σ = 3845556. Its totient is φ = 3812224.

The previous prime is 3828887. The next prime is 3828901. The reversal of 3828889 is 9888283.

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 2585664 + 1243225 = 1608^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3828889 - 2¹ = 3828887 is a prime.

It is a Duffinian number.

3828889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3828887) 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, 7984 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (961389).

Almost surely, 2^3828889 is an apocalyptic number.

It is an amenable number.

3828889 is a deficient number, since it is larger than the sum of its proper divisors (16667).

3828889 is a wasteful number, since it uses less digits than its factorization.

3828889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666.

The product of its digits is 221184, while the sum is 46.

The square root of 3828889 is about 1956.7547112502. The cubic root of 3828889 is about 156.4435246895.

The spelling of 3828889 in words is "three million, eight hundred twenty-eight thousand, eight hundred eighty-nine".