4065845 has 8 divisors (see below), whose sum is σ = 5576064. Its totient is φ = 2787984.

The previous prime is 4065823. The next prime is 4065857. The reversal of 4065845 is 5485604.

4065845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4065845 - 2⁶ = 4065781 is a prime.

It is a super-5 number, since 5×4065845⁵ (a number of 34 digits) contains 55555 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58049 + ... + 58118.

It is an arithmetic number, because the mean of its divisors is an integer number (697008).

Almost surely, 2^4065845 is an apocalyptic number.

It is an amenable number.

4065845 is a deficient number, since it is larger than the sum of its proper divisors (1510219).

4065845 is a wasteful number, since it uses less digits than its factorization.

4065845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116179.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 4065845 is about 2016.3940587098. The cubic root of 4065845 is about 159.6063892560.

The spelling of 4065845 in words is "four million, sixty-five thousand, eight hundred forty-five".