385445579 has 2 divisors, whose sum is σ = 385445580. Its totient is φ = 385445578.

The previous prime is 385445563. The next prime is 385445587. The reversal of 385445579 is 975544583.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385445579 - 2⁴ = 385445563 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385445509) 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, 192722789 + 192722790.

It is an arithmetic number, because the mean of its divisors is an integer number (192722790).

Almost surely, 2^385445579 is an apocalyptic number.

385445579 is a deficient number, since it is larger than the sum of its proper divisors (1).

385445579 is an equidigital number, since it uses as much as digits as its factorization.

385445579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024000, while the sum is 50.

The square root of 385445579 is about 19632.7679912946. The cubic root of 385445579 is about 727.7591753396.

The spelling of 385445579 in words is "three hundred eighty-five million, four hundred forty-five thousand, five hundred seventy-nine".