258846361 has 2 divisors, whose sum is σ = 258846362. Its totient is φ = 258846360.

The previous prime is 258846349. The next prime is 258846409. The reversal of 258846361 is 163648852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220344336 + 38502025 = 14844^2 + 6205^2 .

It is a cyclic number.

It is not a de Polignac number, because 258846361 - 2⁹ = 258845849 is a prime.

It is not a weakly prime, because it can be changed into another prime (258844361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129423180 + 129423181.

It is an arithmetic number, because the mean of its divisors is an integer number (129423181).

Almost surely, 2^258846361 is an apocalyptic number.

It is an amenable number.

258846361 is a deficient number, since it is larger than the sum of its proper divisors (1).

258846361 is an equidigital number, since it uses as much as digits as its factorization.

258846361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 43.

The square root of 258846361 is about 16088.7028998611. The cubic root of 258846361 is about 637.3050423201.

The spelling of 258846361 in words is "two hundred fifty-eight million, eight hundred forty-six thousand, three hundred sixty-one".