384487 has 2 divisors, whose sum is σ = 384488. Its totient is φ = 384486.

The previous prime is 384481. The next prime is 384497. The reversal of 384487 is 784483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384487 - 2³ = 384479 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192243 + 192244.

It is an arithmetic number, because the mean of its divisors is an integer number (192244).

2³⁸⁴⁴⁸⁷ is an apocalyptic number.

384487 is a deficient number, since it is larger than the sum of its proper divisors (1).

384487 is an equidigital number, since it uses as much as digits as its factorization.

384487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 34.

The square root of 384487 is about 620.0701573209. The cubic root of 384487 is about 72.7155377373.

The spelling of 384487 in words is "three hundred eighty-four thousand, four hundred eighty-seven".