384678471 has 4 divisors (see below), whose sum is σ = 512904632. Its totient is φ = 256452312.

The previous prime is 384678461. The next prime is 384678491. The reversal of 384678471 is 174876483.

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

It is not a de Polignac number, because 384678471 - 2⁵ = 384678439 is a prime.

It is a super-3 number, since 3×384678471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 384678471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384678401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64113076 + ... + 64113081.

It is an arithmetic number, because the mean of its divisors is an integer number (128226158).

Almost surely, 2^384678471 is an apocalyptic number.

384678471 is a deficient number, since it is larger than the sum of its proper divisors (128226161).

384678471 is a wasteful number, since it uses less digits than its factorization.

384678471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128226160.

The product of its digits is 903168, while the sum is 48.

The square root of 384678471 is about 19613.2218414008. The cubic root of 384678471 is about 727.2760629113.

The spelling of 384678471 in words is "three hundred eighty-four million, six hundred seventy-eight thousand, four hundred seventy-one".