384247 has 2 divisors, whose sum is σ = 384248. Its totient is φ = 384246.

The previous prime is 384227. The next prime is 384253. The reversal of 384247 is 742483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384247 - 2¹⁵ = 351479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192123 + 192124.

It is an arithmetic number, because the mean of its divisors is an integer number (192124).

2³⁸⁴²⁴⁷ is an apocalyptic number.

384247 is a deficient number, since it is larger than the sum of its proper divisors (1).

384247 is an equidigital number, since it uses as much as digits as its factorization.

384247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 384247 is about 619.8766006231. The cubic root of 384247 is about 72.7004047059.

The spelling of 384247 in words is "three hundred eighty-four thousand, two hundred forty-seven".