3898118917 has 8 divisors (see below), whose sum is σ = 4859992512. Its totient is φ = 3037495200.

The previous prime is 3898118881. The next prime is 3898118941. The reversal of 3898118917 is 7198118983.

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 3898118917 - 2⁷ = 3898118789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898118417) 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, 25312384 + ... + 25312537.

It is an arithmetic number, because the mean of its divisors is an integer number (607499064).

Almost surely, 2^3898118917 is an apocalyptic number.

It is an amenable number.

3898118917 is a deficient number, since it is larger than the sum of its proper divisors (961873595).

3898118917 is a wasteful number, since it uses less digits than its factorization.

3898118917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50624939.

The product of its digits is 870912, while the sum is 55.

The square root of 3898118917 is about 62434.9174500936. The cubic root of 3898118917 is about 1573.8078042034.

The spelling of 3898118917 in words is "three billion, eight hundred ninety-eight million, one hundred eighteen thousand, nine hundred seventeen".