4066855 has 32 divisors (see below), whose sum is σ = 5745600. Its totient is φ = 2737152.

The previous prime is 4066847. The next prime is 4066861. The reversal of 4066855 is 5586604.

It is a 10-Lehmer number, since φ(4066855) divides (4066855-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 4066855 - 2³ = 4066847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4066855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45651 + ... + 45739.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

Almost surely, 2^4066855 is an apocalyptic number.

4066855 is a deficient number, since it is larger than the sum of its proper divisors (1678745).

4066855 is a wasteful number, since it uses less digits than its factorization.

4066855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 4066855 is about 2016.6444902362. The cubic root of 4066855 is about 159.6196041479.

The spelling of 4066855 in words is "four million, sixty-six thousand, eight hundred fifty-five".