384412489 has 2 divisors, whose sum is σ = 384412490. Its totient is φ = 384412488.

The previous prime is 384412471. The next prime is 384412513. The reversal of 384412489 is 984214483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278322489 + 106090000 = 16683^2 + 10300^2 .

It is a cyclic number.

It is not a de Polignac number, because 384412489 - 2⁹ = 384411977 is a prime.

It is not a weakly prime, because it can be changed into another prime (384412439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192206244 + 192206245.

It is an arithmetic number, because the mean of its divisors is an integer number (192206245).

Almost surely, 2^384412489 is an apocalyptic number.

It is an amenable number.

384412489 is a deficient number, since it is larger than the sum of its proper divisors (1).

384412489 is an equidigital number, since it uses as much as digits as its factorization.

384412489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 43.

The square root of 384412489 is about 19606.4399879223. The cubic root of 384412489 is about 727.1084017275.

The spelling of 384412489 in words is "three hundred eighty-four million, four hundred twelve thousand, four hundred eighty-nine".