385949593 has 2 divisors, whose sum is σ = 385949594. Its totient is φ = 385949592.

The previous prime is 385949581. The next prime is 385949609. The reversal of 385949593 is 395949583.

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., 317837584 + 68112009 = 17828^2 + 8253^2 .

It is an emirp because it is prime and its reverse (395949583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385949593 - 2⁵ = 385949561 is a prime.

It is not a weakly prime, because it can be changed into another prime (385949533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192974796 + 192974797.

It is an arithmetic number, because the mean of its divisors is an integer number (192974797).

Almost surely, 2^385949593 is an apocalyptic number.

It is an amenable number.

385949593 is a deficient number, since it is larger than the sum of its proper divisors (1).

385949593 is an equidigital number, since it uses as much as digits as its factorization.

385949593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5248800, while the sum is 55.

The square root of 385949593 is about 19645.5998381317. The cubic root of 385949593 is about 728.0762465174.

The spelling of 385949593 in words is "three hundred eighty-five million, nine hundred forty-nine thousand, five hundred ninety-three".