3198585085 has 4 divisors (see below), whose sum is σ = 3838302108. Its totient is φ = 2558868064.

The previous prime is 3198585083. The next prime is 3198585097. The reversal of 3198585085 is 5805858913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5805858913 = 25349 ⋅229037.

It can be written as a sum of positive squares in 2 ways, for example, as 1239814521 + 1958770564 = 35211^2 + 44258^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198585085 - 2¹ = 3198585083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198585083) 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 3 ways as a sum of consecutive naturals, for example, 319858504 + ... + 319858513.

It is an arithmetic number, because the mean of its divisors is an integer number (959575527).

Almost surely, 2^3198585085 is an apocalyptic number.

It is an amenable number.

3198585085 is a deficient number, since it is larger than the sum of its proper divisors (639717023).

3198585085 is an equidigital number, since it uses as much as digits as its factorization.

3198585085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639717022.

The product of its (nonzero) digits is 1728000, while the sum is 52.

The square root of 3198585085 is about 56556.0349122885. The cubic root of 3198585085 is about 1473.3953761276.

The spelling of 3198585085 in words is "three billion, one hundred ninety-eight million, five hundred eighty-five thousand, eighty-five".