3885005 has 4 divisors (see below), whose sum is σ = 4662012. Its totient is φ = 3108000.

The previous prime is 3885001. The next prime is 3885017. The reversal of 3885005 is 5005883.

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 2920681 + 964324 = 1709^2 + 982^2 .

It is not a de Polignac number, because 3885005 - 2² = 3885001 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 (3885001) 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, 388496 + ... + 388505.

It is an arithmetic number, because the mean of its divisors is an integer number (1165503).

Almost surely, 2^3885005 is an apocalyptic number.

It is an amenable number.

3885005 is a deficient number, since it is larger than the sum of its proper divisors (777007).

3885005 is an equidigital number, since it uses as much as digits as its factorization.

3885005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777006.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 3885005 is about 1971.0416028080. The cubic root of 3885005 is about 157.2040971465.

The spelling of 3885005 in words is "three million, eight hundred eighty-five thousand, five".