4085655 has 32 divisors (see below), whose sum is σ = 7547904. Its totient is φ = 1848576.

The previous prime is 4085639. The next prime is 4085657. The reversal of 4085655 is 5565804.

It is not a de Polignac number, because 4085655 - 2⁴ = 4085639 is a prime.

It is an Ulam number.

4085655 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17419 + ... + 17651.

It is an arithmetic number, because the mean of its divisors is an integer number (235872).

Almost surely, 2^4085655 is an apocalyptic number.

4085655 is a deficient number, since it is larger than the sum of its proper divisors (3462249).

4085655 is a wasteful number, since it uses less digits than its factorization.

4085655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 4085655 is about 2021.3003240489. The cubic root of 4085655 is about 159.8651859183.

The spelling of 4085655 in words is "four million, eighty-five thousand, six hundred fifty-five".