384817161 has 4 divisors (see below), whose sum is σ = 513089552. Its totient is φ = 256544772.

The previous prime is 384817141. The next prime is 384817183. The reversal of 384817161 is 161718483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161718483 = 3 ⋅53906161.

It is not a de Polignac number, because 384817161 - 2¹⁹ = 384292873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384817141) 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, 64136191 + ... + 64136196.

It is an arithmetic number, because the mean of its divisors is an integer number (128272388).

Almost surely, 2^384817161 is an apocalyptic number.

It is an amenable number.

384817161 is a deficient number, since it is larger than the sum of its proper divisors (128272391).

384817161 is a wasteful number, since it uses less digits than its factorization.

384817161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128272390.

The product of its digits is 32256, while the sum is 39.

The square root of 384817161 is about 19616.7571479080. The cubic root of 384817161 is about 727.3634552015.

The spelling of 384817161 in words is "three hundred eighty-four million, eight hundred seventeen thousand, one hundred sixty-one".