4218811 has 4 divisors (see below), whose sum is σ = 4223032. Its totient is φ = 4214592.

The previous prime is 4218803. The next prime is 4218829. The reversal of 4218811 is 1188124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4218811 - 2³ = 4218803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4215811) 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 3 ways as a sum of consecutive naturals, for example, 331 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (1055758).

Almost surely, 2^4218811 is an apocalyptic number.

4218811 is a deficient number, since it is larger than the sum of its proper divisors (4221).

4218811 is a wasteful number, since it uses less digits than its factorization.

4218811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220.

The product of its digits is 512, while the sum is 25.

The square root of 4218811 is about 2053.9744399578. The cubic root of 4218811 is about 161.5833805369.

The spelling of 4218811 in words is "four million, two hundred eighteen thousand, eight hundred eleven".