3871940559 has 4 divisors (see below), whose sum is σ = 5162587416. Its totient is φ = 2581293704.

The previous prime is 3871940551. The next prime is 3871940563. The reversal of 3871940559 is 9550491783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3871940559 - 2³ = 3871940551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871940551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645323424 + ... + 645323429.

It is an arithmetic number, because the mean of its divisors is an integer number (1290646854).

Almost surely, 2^3871940559 is an apocalyptic number.

3871940559 is a deficient number, since it is larger than the sum of its proper divisors (1290646857).

3871940559 is a wasteful number, since it uses less digits than its factorization.

3871940559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290646856.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 3871940559 is about 62224.9191160583. The cubic root of 3871940559 is about 1570.2768466584.

The spelling of 3871940559 in words is "three billion, eight hundred seventy-one million, nine hundred forty thousand, five hundred fifty-nine".