3886831688 has 8 divisors (see below), whose sum is σ = 7287809430. Its totient is φ = 1943415840.

The previous prime is 3886831687. The next prime is 3886831699. The reversal of 3886831688 is 8861386883.

It can be written as a sum of positive squares in only one way, i.e., 2231806564 + 1655025124 = 47242^2 + 40682^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3886831687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242926973 + ... + 242926988.

Almost surely, 2^3886831688 is an apocalyptic number.

It is an amenable number.

3886831688 is a deficient number, since it is larger than the sum of its proper divisors (3400977742).

3886831688 is a wasteful number, since it uses less digits than its factorization.

3886831688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485853967 (or 485853963 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 59.

The square root of 3886831688 is about 62344.4599623736. The cubic root of 3886831688 is about 1572.2873185028.

The spelling of 3886831688 in words is "three billion, eight hundred eighty-six million, eight hundred thirty-one thousand, six hundred eighty-eight".