385193297 has 2 divisors, whose sum is σ = 385193298. Its totient is φ = 385193296.

The previous prime is 385193279. The next prime is 385193339. The reversal of 385193297 is 792391583.

Together with previous prime (385193279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321449041 + 63744256 = 17929^2 + 7984^2 .

It is a cyclic number.

It is not a de Polignac number, because 385193297 - 2¹² = 385189201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385193257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192596648 + 192596649.

It is an arithmetic number, because the mean of its divisors is an integer number (192596649).

Almost surely, 2^385193297 is an apocalyptic number.

It is an amenable number.

385193297 is a deficient number, since it is larger than the sum of its proper divisors (1).

385193297 is an equidigital number, since it uses as much as digits as its factorization.

385193297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 385193297 is about 19626.3419159048. The cubic root of 385193297 is about 727.6003629403.

The spelling of 385193297 in words is "three hundred eighty-five million, one hundred ninety-three thousand, two hundred ninety-seven".