4081811 has 2 divisors, whose sum is σ = 4081812. Its totient is φ = 4081810.

The previous prime is 4081799. The next prime is 4081813. The reversal of 4081811 is 1181804.

4081811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4081811 - 2⁶ = 4081747 is a prime.

It is a super-2 number, since 2×4081811² = 33322362079442, which contains 22 as substring.

Together with 4081813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4081813) by changing a digit.

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 as a sum of consecutive naturals, namely, 2040905 + 2040906.

It is an arithmetic number, because the mean of its divisors is an integer number (2040906).

Almost surely, 2^4081811 is an apocalyptic number.

4081811 is a deficient number, since it is larger than the sum of its proper divisors (1).

4081811 is an equidigital number, since it uses as much as digits as its factorization.

4081811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 4081811 is about 2020.3492272377. The cubic root of 4081811 is about 159.8150336498.

The spelling of 4081811 in words is "four million, eighty-one thousand, eight hundred eleven".