384228847 has 2 divisors, whose sum is σ = 384228848. Its totient is φ = 384228846.

The previous prime is 384228841. The next prime is 384228863. The reversal of 384228847 is 748822483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384228847 - 2¹⁵ = 384196079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384228797 and 384228806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384228841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192114423 + 192114424.

It is an arithmetic number, because the mean of its divisors is an integer number (192114424).

Almost surely, 2^384228847 is an apocalyptic number.

384228847 is a deficient number, since it is larger than the sum of its proper divisors (1).

384228847 is an equidigital number, since it uses as much as digits as its factorization.

384228847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 46.

The square root of 384228847 is about 19601.7562223389. The cubic root of 384228847 is about 726.9925982494.

The spelling of 384228847 in words is "three hundred eighty-four million, two hundred twenty-eight thousand, eight hundred forty-seven".