4071609 has 6 divisors (see below), whose sum is σ = 5881226. Its totient is φ = 2714400.

The previous prime is 4071601. The next prime is 4071647. The reversal of 4071609 is 9061704.

4071609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 1447209 = 1620^2 + 1203^2 .

It is not a de Polignac number, because 4071609 - 2³ = 4071601 is a prime.

It is a Duffinian number.

4071609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4071601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226192 + ... + 226209.

Almost surely, 2^4071609 is an apocalyptic number.

It is an amenable number.

4071609 is a deficient number, since it is larger than the sum of its proper divisors (1809617).

4071609 is a wasteful number, since it uses less digits than its factorization.

4071609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452407 (or 452404 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 4071609 is about 2017.8228366237. The cubic root of 4071609 is about 159.6817763595.

It can be divided in two parts, 407 and 1609, that added together give a triangular number (2016 = T₆₃).

The spelling of 4071609 in words is "four million, seventy-one thousand, six hundred nine".