3898997912 has 8 divisors (see below), whose sum is σ = 7310621100. Its totient is φ = 1949498952.

The previous prime is 3898997911. The next prime is 3898997929. The reversal of 3898997912 is 2197998983.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898997911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243687362 + ... + 243687377.

Almost surely, 2^3898997912 is an apocalyptic number.

It is an amenable number.

3898997912 is a deficient number, since it is larger than the sum of its proper divisors (3411623188).

3898997912 is a wasteful number, since it uses less digits than its factorization.

3898997912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487374745 (or 487374741 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 65.

The square root of 3898997912 is about 62441.9563434715. The cubic root of 3898997912 is about 1573.9260890526.

The spelling of 3898997912 in words is "three billion, eight hundred ninety-eight million, nine hundred ninety-seven thousand, nine hundred twelve".