4009170085 has 8 divisors (see below), whose sum is σ = 4811560056. Its totient is φ = 3206965440.

The previous prime is 4009170083. The next prime is 4009170101. The reversal of 4009170085 is 5800719004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 887364 + 4008282721 = 942^2 + 63311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4009170085 - 2¹ = 4009170083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4009170085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009170083) 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 in 7 ways as a sum of consecutive naturals, for example, 6807 + ... + 89803.

It is an arithmetic number, because the mean of its divisors is an integer number (601445007).

Almost surely, 2^4009170085 is an apocalyptic number.

It is an amenable number.

4009170085 is a deficient number, since it is larger than the sum of its proper divisors (802389971).

4009170085 is an equidigital number, since it uses as much as digits as its factorization.

4009170085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92663.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4009170085 is about 63318.0075886789. The cubic root of 4009170085 is about 1588.6131763805.

Adding to 4009170085 its reverse (5800719004), we get a palindrome (9809889089).

The spelling of 4009170085 in words is "four billion, nine million, one hundred seventy thousand, eighty-five".