385485913 has 2 divisors, whose sum is σ = 385485914. Its totient is φ = 385485912.

The previous prime is 385485887. The next prime is 385485953. The reversal of 385485913 is 319584583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385258384 + 227529 = 19628^2 + 477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385485913 is a prime.

It is not a weakly prime, because it can be changed into another prime (385485953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192742956 + 192742957.

It is an arithmetic number, because the mean of its divisors is an integer number (192742957).

Almost surely, 2^385485913 is an apocalyptic number.

It is an amenable number.

385485913 is a deficient number, since it is larger than the sum of its proper divisors (1).

385485913 is an equidigital number, since it uses as much as digits as its factorization.

385485913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 46.

The square root of 385485913 is about 19633.7951756659. The cubic root of 385485913 is about 727.7845593076.

The spelling of 385485913 in words is "three hundred eighty-five million, four hundred eighty-five thousand, nine hundred thirteen".