384111427 has 4 divisors (see below), whose sum is σ = 438984496. Its totient is φ = 329238360.

The previous prime is 384111419. The next prime is 384111433. The reversal of 384111427 is 724111483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724111483 = 1931 ⋅374993.

It is a cyclic number.

It is not a de Polignac number, because 384111427 - 2³ = 384111419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384111407) 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, 27436524 + ... + 27436537.

It is an arithmetic number, because the mean of its divisors is an integer number (109746124).

Almost surely, 2^384111427 is an apocalyptic number.

384111427 is a deficient number, since it is larger than the sum of its proper divisors (54873069).

384111427 is an equidigital number, since it uses as much as digits as its factorization.

384111427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54873068.

The product of its digits is 5376, while the sum is 31.

The square root of 384111427 is about 19598.7608536866. The cubic root of 384111427 is about 726.9185346033.

The spelling of 384111427 in words is "three hundred eighty-four million, one hundred eleven thousand, four hundred twenty-seven".