3903971887 has 16 divisors (see below), whose sum is σ = 4083185664. Its totient is φ = 3728340000.

The previous prime is 3903971873. The next prime is 3903971893. The reversal of 3903971887 is 7881793093.

It is a cyclic number.

It is not a de Polignac number, because 3903971887 - 2⁷ = 3903971759 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 (3903971837) 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 in 15 ways as a sum of consecutive naturals, for example, 1034478 + ... + 1038244.

It is an arithmetic number, because the mean of its divisors is an integer number (255199104).

Almost surely, 2^3903971887 is an apocalyptic number.

3903971887 is a deficient number, since it is larger than the sum of its proper divisors (179213777).

3903971887 is a wasteful number, since it uses less digits than its factorization.

3903971887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The square root of 3903971887 is about 62481.7724380479. The cubic root of 3903971887 is about 1574.5950936298.

The spelling of 3903971887 in words is "three billion, nine hundred three million, nine hundred seventy-one thousand, eight hundred eighty-seven".