384752497 has 2 divisors, whose sum is σ = 384752498. Its totient is φ = 384752496.

The previous prime is 384752491. The next prime is 384752507. The reversal of 384752497 is 794257483.

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., 373301041 + 11451456 = 19321^2 + 3384^2 .

It is an emirp because it is prime and its reverse (794257483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384752497 - 2⁷ = 384752369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384752497.

It is not a weakly prime, because it can be changed into another prime (384752491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192376248 + 192376249.

It is an arithmetic number, because the mean of its divisors is an integer number (192376249).

Almost surely, 2^384752497 is an apocalyptic number.

It is an amenable number.

384752497 is a deficient number, since it is larger than the sum of its proper divisors (1).

384752497 is an equidigital number, since it uses as much as digits as its factorization.

384752497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

The square root of 384752497 is about 19615.1088959506. The cubic root of 384752497 is about 727.3227112933.

The spelling of 384752497 in words is "three hundred eighty-four million, seven hundred fifty-two thousand, four hundred ninety-seven".