258316798 has 4 divisors (see below), whose sum is σ = 387475200. Its totient is φ = 129158398.

The previous prime is 258316789. The next prime is 258316801. The reversal of 258316798 is 897613852.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 64579198 + ... + 64579201.

It is an arithmetic number, because the mean of its divisors is an integer number (96868800).

Almost surely, 2^258316798 is an apocalyptic number.

258316798 is a deficient number, since it is larger than the sum of its proper divisors (129158402).

258316798 is a wasteful number, since it uses less digits than its factorization.

258316798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129158401.

The product of its digits is 725760, while the sum is 49.

The square root of 258316798 is about 16072.2368698324. The cubic root of 258316798 is about 636.8701336414.

The spelling of 258316798 in words is "two hundred fifty-eight million, three hundred sixteen thousand, seven hundred ninety-eight".