384212867 has 2 divisors, whose sum is σ = 384212868. Its totient is φ = 384212866.

The previous prime is 384212839. The next prime is 384212887. The reversal of 384212867 is 768212483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384212867 - 2¹⁶ = 384147331 is a prime.

It is not a weakly prime, because it can be changed into another prime (384212837) 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, 192106433 + 192106434.

It is an arithmetic number, because the mean of its divisors is an integer number (192106434).

Almost surely, 2^384212867 is an apocalyptic number.

384212867 is a deficient number, since it is larger than the sum of its proper divisors (1).

384212867 is an equidigital number, since it uses as much as digits as its factorization.

384212867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 41.

The square root of 384212867 is about 19601.3486015631. The cubic root of 384212867 is about 726.9825196180.

The spelling of 384212867 in words is "three hundred eighty-four million, two hundred twelve thousand, eight hundred sixty-seven".