3886868887 has 4 divisors (see below), whose sum is σ = 4240220616. Its totient is φ = 3533517160.

The previous prime is 3886868879. The next prime is 3886868891. The reversal of 3886868887 is 7888686883.

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 3886868887 - 2³ = 3886868879 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 (3886868807) 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, 176675848 + ... + 176675869.

It is an arithmetic number, because the mean of its divisors is an integer number (1060055154).

Almost surely, 2^3886868887 is an apocalyptic number.

3886868887 is a deficient number, since it is larger than the sum of its proper divisors (353351729).

3886868887 is a wasteful number, since it uses less digits than its factorization.

3886868887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353351728.

The product of its digits is 198180864, while the sum is 70.

The square root of 3886868887 is about 62344.7582961070. The cubic root of 3886868887 is about 1572.2923343559.

The spelling of 3886868887 in words is "three billion, eight hundred eighty-six million, eight hundred sixty-eight thousand, eight hundred eighty-seven".