384523247 has 2 divisors, whose sum is σ = 384523248. Its totient is φ = 384523246.

The previous prime is 384523231. The next prime is 384523259. The reversal of 384523247 is 742325483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384523247 - 2⁴ = 384523231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384523247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384523207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192261623 + 192261624.

It is an arithmetic number, because the mean of its divisors is an integer number (192261624).

Almost surely, 2^384523247 is an apocalyptic number.

384523247 is a deficient number, since it is larger than the sum of its proper divisors (1).

384523247 is an equidigital number, since it uses as much as digits as its factorization.

384523247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The square root of 384523247 is about 19609.2643156239. The cubic root of 384523247 is about 727.1782271897.

The spelling of 384523247 in words is "three hundred eighty-four million, five hundred twenty-three thousand, two hundred forty-seven".