3905049917 has 8 divisors (see below), whose sum is σ = 4289300160. Its totient is φ = 3538671840.

The previous prime is 3905049887. The next prime is 3905049937. The reversal of 3905049917 is 7199405093.

3905049917 is digitally balanced in base 2, 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 3905049917 - 2¹⁴ = 3905033533 is a prime.

It is a super-3 number, since 3×3905049917³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905049937) 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, 4467584 + ... + 4468457.

It is an arithmetic number, because the mean of its divisors is an integer number (536162520).

Almost surely, 2^3905049917 is an apocalyptic number.

It is an amenable number.

3905049917 is a deficient number, since it is larger than the sum of its proper divisors (384250243).

3905049917 is a wasteful number, since it uses less digits than its factorization.

3905049917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936083.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 3905049917 is about 62490.3985985047. The cubic root of 3905049917 is about 1574.7400148006.

The spelling of 3905049917 in words is "three billion, nine hundred five million, forty-nine thousand, nine hundred seventeen".