384949271 has 4 divisors (see below), whose sum is σ = 439942032. Its totient is φ = 329956512.

The previous prime is 384949247. The next prime is 384949273. The reversal of 384949271 is 172949483.

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

It is a cyclic number.

It is not a de Polignac number, because 384949271 - 2²⁶ = 317840407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384949273) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27496370 + ... + 27496383.

It is an arithmetic number, because the mean of its divisors is an integer number (109985508).

Almost surely, 2^384949271 is an apocalyptic number.

384949271 is a deficient number, since it is larger than the sum of its proper divisors (54992761).

384949271 is an equidigital number, since it uses as much as digits as its factorization.

384949271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54992760.

The product of its digits is 435456, while the sum is 47.

The square root of 384949271 is about 19620.1241331445. The cubic root of 384949271 is about 727.4466817322.

The spelling of 384949271 in words is "three hundred eighty-four million, nine hundred forty-nine thousand, two hundred seventy-one".