258798193 has 2 divisors, whose sum is σ = 258798194. Its totient is φ = 258798192.

The previous prime is 258798181. The next prime is 258798203. The reversal of 258798193 is 391897852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175112289 + 83685904 = 13233^2 + 9148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258798193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258798193.

It is not a weakly prime, because it can be changed into another prime (258798493) 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, 129399096 + 129399097.

It is an arithmetic number, because the mean of its divisors is an integer number (129399097).

Almost surely, 2^258798193 is an apocalyptic number.

It is an amenable number.

258798193 is a deficient number, since it is larger than the sum of its proper divisors (1).

258798193 is an equidigital number, since it uses as much as digits as its factorization.

258798193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 52.

The square root of 258798193 is about 16087.2058792072. The cubic root of 258798193 is about 637.2655084263.

The spelling of 258798193 in words is "two hundred fifty-eight million, seven hundred ninety-eight thousand, one hundred ninety-three".