3528070217 has 20 divisors (see below), whose sum is σ = 4172425620. Its totient is φ = 2982486528.

The previous prime is 3528070207. The next prime is 3528070229. The reversal of 3528070217 is 7120708253.

3528070217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2652147001 + 875923216 = 51499^2 + 29596^2 .

It is not a de Polignac number, because 3528070217 - 2¹⁸ = 3527808073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3528070207) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 165209 + ... + 185337.

It is an arithmetic number, because the mean of its divisors is an integer number (208621281).

Almost surely, 2^3528070217 is an apocalyptic number.

It is an amenable number.

3528070217 is a deficient number, since it is larger than the sum of its proper divisors (644355403).

3528070217 is an frugal number, since it uses more digits than its factorization.

3528070217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20230 (or 20209 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 3528070217 is about 59397.5606990725. The cubic root of 3528070217 is about 1522.3426216857.

The spelling of 3528070217 in words is "three billion, five hundred twenty-eight million, seventy thousand, two hundred seventeen".