3988764871 has 24 divisors (see below), whose sum is σ = 4941790560. Its totient is φ = 3152388096.

The previous prime is 3988764869. The next prime is 3988764881. The reversal of 3988764871 is 1784678893.

It is not a de Polignac number, because 3988764871 - 2¹ = 3988764869 is a prime.

It is a super-2 number, since 2×3988764871² = 31820490392247293282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988764841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665651 + ... + 1668043.

It is an arithmetic number, because the mean of its divisors is an integer number (205907940).

Almost surely, 2^3988764871 is an apocalyptic number.

3988764871 is a deficient number, since it is larger than the sum of its proper divisors (953025689).

3988764871 is a wasteful number, since it uses less digits than its factorization.

3988764871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835 (or 3822 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 61.

The square root of 3988764871 is about 63156.6692519484. The cubic root of 3988764871 is about 1585.9134370027.

The spelling of 3988764871 in words is "three billion, nine hundred eighty-eight million, seven hundred sixty-four thousand, eight hundred seventy-one".