3848905 has 4 divisors (see below), whose sum is σ = 4618692. Its totient is φ = 3079120.

The previous prime is 3848903. The next prime is 3848921. The reversal of 3848905 is 5098483.

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 2050624 + 1798281 = 1432^2 + 1341^2 .

It is not a de Polignac number, because 3848905 - 2¹ = 3848903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3848903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384886 + ... + 384895.

It is an arithmetic number, because the mean of its divisors is an integer number (1154673).

Almost surely, 2^3848905 is an apocalyptic number.

It is an amenable number.

3848905 is a deficient number, since it is larger than the sum of its proper divisors (769787).

3848905 is an equidigital number, since it uses as much as digits as its factorization.

3848905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769786.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 3848905 is about 1961.8626353545. The cubic root of 3848905 is about 156.7156604476.

It can be divided in two parts, 3848 and 905, that added together give a triangular number (4753 = T₉₇).

The spelling of 3848905 in words is "three million, eight hundred forty-eight thousand, nine hundred five".