384100047 has 6 divisors (see below), whose sum is σ = 554811192. Its totient is φ = 256066692.

The previous prime is 384100039. The next prime is 384100109. The reversal of 384100047 is 740001483.

It is not a de Polignac number, because 384100047 - 2³ = 384100039 is a prime.

It is a super-2 number, since 2×384100047² = 295065692210804418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384100247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21338883 + ... + 21338900.

It is an arithmetic number, because the mean of its divisors is an integer number (92468532).

Almost surely, 2^384100047 is an apocalyptic number.

384100047 is a deficient number, since it is larger than the sum of its proper divisors (170711145).

384100047 is a wasteful number, since it uses less digits than its factorization.

384100047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42677789 (or 42677786 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 384100047 is about 19598.4705270590. The cubic root of 384100047 is about 726.9113557710.

The spelling of 384100047 in words is "three hundred eighty-four million, one hundred thousand, forty-seven".