3848217985 has 4 divisors (see below), whose sum is σ = 4617861588. Its totient is φ = 3078574384.

The previous prime is 3848217949. The next prime is 3848218043. The reversal of 3848217985 is 5897128483.

3848217985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5897128483 = 97 ⋅60795139.

It can be written as a sum of positive squares in 2 ways, for example, as 1709987904 + 2138230081 = 41352^2 + 46241^2 .

It is a cyclic number.

It is not a de Polignac number, because 3848217985 - 2⁹ = 3848217473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384821794 + ... + 384821803.

It is an arithmetic number, because the mean of its divisors is an integer number (1154465397).

Almost surely, 2^3848217985 is an apocalyptic number.

It is an amenable number.

3848217985 is a deficient number, since it is larger than the sum of its proper divisors (769643603).

3848217985 is an equidigital number, since it uses as much as digits as its factorization.

3848217985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769643602.

The product of its digits is 3870720, while the sum is 55.

The square root of 3848217985 is about 62034.0066818193. The cubic root of 3848217985 is about 1567.0633550833.

The spelling of 3848217985 in words is "three billion, eight hundred forty-eight million, two hundred seventeen thousand, nine hundred eighty-five".