4413781 has 2 divisors, whose sum is σ = 4413782. Its totient is φ = 4413780.

The previous prime is 4413763. The next prime is 4413793. The reversal of 4413781 is 1873144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 128881 = 2070^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 4413781 - 2¹⁹ = 3889493 is a prime.

It is a super-2 number, since 2×4413781² = 38962925431922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4413701) 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, 2206890 + 2206891.

It is an arithmetic number, because the mean of its divisors is an integer number (2206891).

Almost surely, 2^4413781 is an apocalyptic number.

It is an amenable number.

4413781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4413781 is an equidigital number, since it uses as much as digits as its factorization.

4413781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 4413781 is about 2100.9000452187. The cubic root of 4413781 is about 164.0351525876.

The spelling of 4413781 in words is "four million, four hundred thirteen thousand, seven hundred eighty-one".