4085517 has 4 divisors (see below), whose sum is σ = 5447360. Its totient is φ = 2723676.

The previous prime is 4085507. The next prime is 4085519. The reversal of 4085517 is 7155804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4085517 - 2⁶ = 4085453 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085519) 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, 680917 + ... + 680922.

It is an arithmetic number, because the mean of its divisors is an integer number (1361840).

Almost surely, 2^4085517 is an apocalyptic number.

It is an amenable number.

4085517 is a deficient number, since it is larger than the sum of its proper divisors (1361843).

4085517 is a wasteful number, since it uses less digits than its factorization.

4085517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361842.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 4085517 is about 2021.2661873192. The cubic root of 4085517 is about 159.8633859912.

The spelling of 4085517 in words is "four million, eighty-five thousand, five hundred seventeen".