4084378717 has 2 divisors, whose sum is σ = 4084378718. Its totient is φ = 4084378716.

The previous prime is 4084378699. The next prime is 4084378729. The reversal of 4084378717 is 7178734804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2391796836 + 1692581881 = 48906^2 + 41141^2 .

It is a cyclic number.

It is not a de Polignac number, because 4084378717 - 2¹⁵ = 4084345949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4084378747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042189358 + 2042189359.

It is an arithmetic number, because the mean of its divisors is an integer number (2042189359).

Almost surely, 2^4084378717 is an apocalyptic number.

It is an amenable number.

4084378717 is a deficient number, since it is larger than the sum of its proper divisors (1).

4084378717 is an equidigital number, since it uses as much as digits as its factorization.

4084378717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The square root of 4084378717 is about 63909.1442361733. The cubic root of 4084378717 is about 1598.4853787634.

The spelling of 4084378717 in words is "four billion, eighty-four million, three hundred seventy-eight thousand, seven hundred seventeen".