384995966 has 4 divisors (see below), whose sum is σ = 577493952. Its totient is φ = 192497982.

The previous prime is 384995959. The next prime is 384995971. The reversal of 384995966 is 669599483.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 96248990 + ... + 96248993.

It is an arithmetic number, because the mean of its divisors is an integer number (144373488).

Almost surely, 2^384995966 is an apocalyptic number.

384995966 is a deficient number, since it is larger than the sum of its proper divisors (192497986).

384995966 is a wasteful number, since it uses less digits than its factorization.

384995966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192497985.

The product of its digits is 12597120, while the sum is 59.

The square root of 384995966 is about 19621.3140742408. The cubic root of 384995966 is about 727.4760940488.

The spelling of 384995966 in words is "three hundred eighty-four million, nine hundred ninety-five thousand, nine hundred sixty-six".