385198873 has 2 divisors, whose sum is σ = 385198874. Its totient is φ = 385198872.

The previous prime is 385198861. The next prime is 385198883. The reversal of 385198873 is 378891583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304432704 + 80766169 = 17448^2 + 8987^2 .

It is a cyclic number.

It is not a de Polignac number, because 385198873 - 2⁵ = 385198841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385198873.

It is not a weakly prime, because it can be changed into another prime (385198883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192599436 + 192599437.

It is an arithmetic number, because the mean of its divisors is an integer number (192599437).

Almost surely, 2^385198873 is an apocalyptic number.

It is an amenable number.

385198873 is a deficient number, since it is larger than the sum of its proper divisors (1).

385198873 is an equidigital number, since it uses as much as digits as its factorization.

385198873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 385198873 is about 19626.4839693716. The cubic root of 385198873 is about 727.6038738010.

The spelling of 385198873 in words is "three hundred eighty-five million, one hundred ninety-eight thousand, eight hundred seventy-three".