4120865 has 16 divisors (see below), whose sum is σ = 5685120. Its totient is φ = 2808960.

The previous prime is 4120849. The next prime is 4120873. The reversal of 4120865 is 5680214.

4120865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4120865 - 2⁴ = 4120849 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 9626 + ... + 10044.

It is an arithmetic number, because the mean of its divisors is an integer number (355320).

Almost surely, 2^4120865 is an apocalyptic number.

It is an amenable number.

4120865 is a deficient number, since it is larger than the sum of its proper divisors (1564255).

4120865 is a wasteful number, since it uses less digits than its factorization.

4120865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4120865 is about 2029.9913792920. The cubic root of 4120865 is about 160.3231100808.

The spelling of 4120865 in words is "four million, one hundred twenty thousand, eight hundred sixty-five".