258846473 has 2 divisors, whose sum is σ = 258846474. Its totient is φ = 258846472.

The previous prime is 258846451. The next prime is 258846479. The reversal of 258846473 is 374648852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258309184 + 537289 = 16072^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 258846473 - 2⁶ = 258846409 is a prime.

It is not a weakly prime, because it can be changed into another prime (258846479) 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, 129423236 + 129423237.

It is an arithmetic number, because the mean of its divisors is an integer number (129423237).

Almost surely, 2^258846473 is an apocalyptic number.

It is an amenable number.

258846473 is a deficient number, since it is larger than the sum of its proper divisors (1).

258846473 is an equidigital number, since it uses as much as digits as its factorization.

258846473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The square root of 258846473 is about 16088.7063805640. The cubic root of 258846473 is about 637.3051342384.

The spelling of 258846473 in words is "two hundred fifty-eight million, eight hundred forty-six thousand, four hundred seventy-three".