3856287878 has 8 divisors (see below), whose sum is σ = 5798858040. Its totient is φ = 1923335200.

The previous prime is 3856287857. The next prime is 3856287887. The reversal of 3856287878 is 8787826583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3856287878.

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, 2403368 + ... + 2404971.

It is an arithmetic number, because the mean of its divisors is an integer number (724857255).

Almost surely, 2^3856287878 is an apocalyptic number.

3856287878 is a deficient number, since it is larger than the sum of its proper divisors (1942570162).

3856287878 is a wasteful number, since it uses less digits than its factorization.

3856287878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808742.

The product of its digits is 36126720, while the sum is 62.

The square root of 3856287878 is about 62099.0167232944. The cubic root of 3856287878 is about 1568.1579919740.

The spelling of 3856287878 in words is "three billion, eight hundred fifty-six million, two hundred eighty-seven thousand, eight hundred seventy-eight".