4065855 has 8 divisors (see below), whose sum is σ = 6505392. Its totient is φ = 2168448.

The previous prime is 4065823. The next prime is 4065857. The reversal of 4065855 is 5585604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4065855 - 2⁵ = 4065823 is a prime.

It is a super-5 number, since 5×4065855⁵ (a number of 34 digits) contains 55555 as substring.

4065855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065857) 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 7 ways as a sum of consecutive naturals, for example, 135514 + ... + 135543.

It is an arithmetic number, because the mean of its divisors is an integer number (813174).

Almost surely, 2^4065855 is an apocalyptic number.

4065855 is a deficient number, since it is larger than the sum of its proper divisors (2439537).

4065855 is a wasteful number, since it uses less digits than its factorization.

4065855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271065.

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

The square root of 4065855 is about 2016.3965383823. The cubic root of 4065855 is about 159.6065201072.

The spelling of 4065855 in words is "four million, sixty-five thousand, eight hundred fifty-five".