384420073 has 2 divisors, whose sum is σ = 384420074. Its totient is φ = 384420072.

The previous prime is 384420067. The next prime is 384420089. The reversal of 384420073 is 370024483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347002384 + 37417689 = 18628^2 + 6117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384420073 is a prime.

It is not a weakly prime, because it can be changed into another prime (384420053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192210036 + 192210037.

It is an arithmetic number, because the mean of its divisors is an integer number (192210037).

Almost surely, 2^384420073 is an apocalyptic number.

It is an amenable number.

384420073 is a deficient number, since it is larger than the sum of its proper divisors (1).

384420073 is an equidigital number, since it uses as much as digits as its factorization.

384420073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 384420073 is about 19606.6333928087. The cubic root of 384420073 is about 727.1131833566.

The spelling of 384420073 in words is "three hundred eighty-four million, four hundred twenty thousand, seventy-three".