3884877861 has 4 divisors (see below), whose sum is σ = 5179837152. Its totient is φ = 2589918572.

The previous prime is 3884877827. The next prime is 3884877877. The reversal of 3884877861 is 1687784883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3884877861 - 2¹⁰ = 3884876837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3884877795 and 3884877804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3884877461) 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, 647479641 + ... + 647479646.

It is an arithmetic number, because the mean of its divisors is an integer number (1294959288).

Almost surely, 2^3884877861 is an apocalyptic number.

It is an amenable number.

3884877861 is a deficient number, since it is larger than the sum of its proper divisors (1294959291).

3884877861 is a wasteful number, since it uses less digits than its factorization.

3884877861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294959290.

The product of its digits is 14450688, while the sum is 60.

The square root of 3884877861 is about 62328.7883806512. The cubic root of 3884877861 is about 1572.0238226323.

The spelling of 3884877861 in words is "three billion, eight hundred eighty-four million, eight hundred seventy-seven thousand, eight hundred sixty-one".