3906832385 has 8 divisors (see below), whose sum is σ = 4689548520. Its totient is φ = 3124566144.

The previous prime is 3906832379. The next prime is 3906832387. The reversal of 3906832385 is 5832386093.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82369 + 3906750016 = 287^2 + 62504^2 .

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 3906832385 - 2¹⁰ = 3906831361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3906832387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93062 + ... + 128351.

It is an arithmetic number, because the mean of its divisors is an integer number (586193565).

Almost surely, 2^3906832385 is an apocalyptic number.

It is an amenable number.

3906832385 is a deficient number, since it is larger than the sum of its proper divisors (782716135).

3906832385 is a wasteful number, since it uses less digits than its factorization.

3906832385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224947.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 3906832385 is about 62504.6589063567. The cubic root of 3906832385 is about 1574.9795761188.

The spelling of 3906832385 in words is "three billion, nine hundred six million, eight hundred thirty-two thousand, three hundred eighty-five".