3985579841 has 8 divisors (see below), whose sum is σ = 4221434880. Its totient is φ = 3749881408.

The previous prime is 3985579799. The next prime is 3985579847. The reversal of 3985579841 is 1489755893.

3985579841 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3985579841 - 2⁶ = 3985579777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3985579847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15440 + ... + 90606.

It is an arithmetic number, because the mean of its divisors is an integer number (527679360).

Almost surely, 2^3985579841 is an apocalyptic number.

It is an amenable number.

3985579841 is a deficient number, since it is larger than the sum of its proper divisors (235855039).

3985579841 is a wasteful number, since it uses less digits than its factorization.

3985579841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78303.

The product of its digits is 10886400, while the sum is 59.

The square root of 3985579841 is about 63131.4489062306. The cubic root of 3985579841 is about 1585.4912071403.

The spelling of 3985579841 in words is "three billion, nine hundred eighty-five million, five hundred seventy-nine thousand, eight hundred forty-one".