384664039 has 2 divisors, whose sum is σ = 384664040. Its totient is φ = 384664038.

The previous prime is 384664031. The next prime is 384664043. The reversal of 384664039 is 930466483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384664039 - 2³ = 384664031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384663986 and 384664004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384664031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192332019 + 192332020.

It is an arithmetic number, because the mean of its divisors is an integer number (192332020).

Almost surely, 2^384664039 is an apocalyptic number.

384664039 is a deficient number, since it is larger than the sum of its proper divisors (1).

384664039 is an equidigital number, since it uses as much as digits as its factorization.

384664039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 43.

The square root of 384664039 is about 19612.8539228742. The cubic root of 384664039 is about 727.2669677143.

The spelling of 384664039 in words is "three hundred eighty-four million, six hundred sixty-four thousand, thirty-nine".