384978854 has 16 divisors (see below), whose sum is σ = 622212192. Its totient is φ = 177590208.

The previous prime is 384978823. The next prime is 384978901. The reversal of 384978854 is 458879483.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 384978854.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 97727 + ... + 101589.

It is an arithmetic number, because the mean of its divisors is an integer number (38888262).

Almost surely, 2^384978854 is an apocalyptic number.

384978854 is a deficient number, since it is larger than the sum of its proper divisors (237233338).

384978854 is a wasteful number, since it uses less digits than its factorization.

384978854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711.

The product of its digits is 7741440, while the sum is 56.

The square root of 384978854 is about 19620.8780129738. The cubic root of 384978854 is about 727.4653157927.

The spelling of 384978854 in words is "three hundred eighty-four million, nine hundred seventy-eight thousand, eight hundred fifty-four".