3811217 has 2 divisors, whose sum is σ = 3811218. Its totient is φ = 3811216.

The previous prime is 3811207. The next prime is 3811253. The reversal of 3811217 is 7121183.

It is a happy number.

3811217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3400336 + 410881 = 1844^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 3811217 - 2⁴ = 3811201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3811192 and 3811201.

It is not a weakly prime, because it can be changed into another prime (3811207) 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, 1905608 + 1905609.

It is an arithmetic number, because the mean of its divisors is an integer number (1905609).

Almost surely, 2^3811217 is an apocalyptic number.

It is an amenable number.

3811217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3811217 is an equidigital number, since it uses as much as digits as its factorization.

3811217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 23.

The square root of 3811217 is about 1952.2338486974. The cubic root of 3811217 is about 156.2024683155.

The spelling of 3811217 in words is "three million, eight hundred eleven thousand, two hundred seventeen".