384729493 has 2 divisors, whose sum is σ = 384729494. Its totient is φ = 384729492.

The previous prime is 384729469. The next prime is 384729509. The reversal of 384729493 is 394927483.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378613764 + 6115729 = 19458^2 + 2473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384729493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384729463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192364746 + 192364747.

It is an arithmetic number, because the mean of its divisors is an integer number (192364747).

Almost surely, 2^384729493 is an apocalyptic number.

It is an amenable number.

384729493 is a deficient number, since it is larger than the sum of its proper divisors (1).

384729493 is an equidigital number, since it uses as much as digits as its factorization.

384729493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 384729493 is about 19614.5225024725. The cubic root of 384729493 is about 727.3082156845.

The spelling of 384729493 in words is "three hundred eighty-four million, seven hundred twenty-nine thousand, four hundred ninety-three".