258464473 has 2 divisors, whose sum is σ = 258464474. Its totient is φ = 258464472.

The previous prime is 258464471. The next prime is 258464497. The reversal of 258464473 is 374464852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251000649 + 7463824 = 15843^2 + 2732^2 .

It is a cyclic number.

It is not a de Polignac number, because 258464473 - 2¹ = 258464471 is a prime.

Together with 258464471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (258464471) by changing a digit.

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, 129232236 + 129232237.

It is an arithmetic number, because the mean of its divisors is an integer number (129232237).

Almost surely, 2^258464473 is an apocalyptic number.

It is an amenable number.

258464473 is a deficient number, since it is larger than the sum of its proper divisors (1).

258464473 is an equidigital number, since it uses as much as digits as its factorization.

258464473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 43.

The square root of 258464473 is about 16076.8303157059. The cubic root of 258464473 is about 636.9914728668.

The spelling of 258464473 in words is "two hundred fifty-eight million, four hundred sixty-four thousand, four hundred seventy-three".