257848473 has 8 divisors (see below), whose sum is σ = 344819488. Its totient is φ = 171388224.

The previous prime is 257848471. The next prime is 257848477. The reversal of 257848473 is 374848752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 257848473 - 2¹ = 257848471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257848471) 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 in 7 ways as a sum of consecutive naturals, for example, 126511 + ... + 128532.

It is an arithmetic number, because the mean of its divisors is an integer number (43102436).

Almost surely, 2^257848473 is an apocalyptic number.

It is an amenable number.

257848473 is a deficient number, since it is larger than the sum of its proper divisors (86971015).

257848473 is a wasteful number, since it uses less digits than its factorization.

257848473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255383.

The product of its digits is 1505280, while the sum is 48.

The square root of 257848473 is about 16057.6608819591. The cubic root of 257848473 is about 636.4850217195.

The spelling of 257848473 in words is "two hundred fifty-seven million, eight hundred forty-eight thousand, four hundred seventy-three".