4085523 has 12 divisors (see below), whose sum is σ = 6355440. Its totient is φ = 2514096.

The previous prime is 4085519. The next prime is 4085531. The reversal of 4085523 is 3255804.

It is not a de Polignac number, because 4085523 - 2² = 4085519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4085563) 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 11 ways as a sum of consecutive naturals, for example, 17343 + ... + 17576.

It is an arithmetic number, because the mean of its divisors is an integer number (529620).

Almost surely, 2^4085523 is an apocalyptic number.

4085523 is a deficient number, since it is larger than the sum of its proper divisors (2269917).

4085523 is a wasteful number, since it uses less digits than its factorization.

4085523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34938 (or 34935 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 4085523 is about 2021.2676715369. The cubic root of 4085523 is about 159.8634642497.

The spelling of 4085523 in words is "four million, eighty-five thousand, five hundred twenty-three".