384644123 has 2 divisors, whose sum is σ = 384644124. Its totient is φ = 384644122.

The previous prime is 384644107. The next prime is 384644129. The reversal of 384644123 is 321446483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384644123 - 2⁴ = 384644107 is a prime.

It is a super-2 number, since 2×384644123² = 295902202716878258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (384644129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192322061 + 192322062.

It is an arithmetic number, because the mean of its divisors is an integer number (192322062).

Almost surely, 2^384644123 is an apocalyptic number.

384644123 is a deficient number, since it is larger than the sum of its proper divisors (1).

384644123 is an equidigital number, since it uses as much as digits as its factorization.

384644123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 35.

The square root of 384644123 is about 19612.3461880521. The cubic root of 384644123 is about 727.2544160697.

The spelling of 384644123 in words is "three hundred eighty-four million, six hundred forty-four thousand, one hundred twenty-three".