3878909884 has 12 divisors (see below), whose sum is σ = 6793089408. Its totient is φ = 1938027200.

The previous prime is 3878909863. The next prime is 3878909897. The reversal of 3878909884 is 4889098783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350812 + ... + 361699.

It is an arithmetic number, because the mean of its divisors is an integer number (566090784).

Almost surely, 2^3878909884 is an apocalyptic number.

It is an amenable number.

3878909884 is a deficient number, since it is larger than the sum of its proper divisors (2914179524).

3878909884 is a wasteful number, since it uses less digits than its factorization.

3878909884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713876 (or 713874 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 64.

The square root of 3878909884 is about 62280.8950160481. The cubic root of 3878909884 is about 1571.2184253468.

The spelling of 3878909884 in words is "three billion, eight hundred seventy-eight million, nine hundred nine thousand, eight hundred eighty-four".