257828323 has 8 divisors (see below), whose sum is σ = 264019968. Its totient is φ = 251666184.

The previous prime is 257828317. The next prime is 257828327. The reversal of 257828323 is 323828752.

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

It is a cyclic number.

It is not a de Polignac number, because 257828323 - 2²¹ = 255731171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257828327) 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, 10840 + ... + 25162.

It is an arithmetic number, because the mean of its divisors is an integer number (33002496).

Almost surely, 2^257828323 is an apocalyptic number.

257828323 is a deficient number, since it is larger than the sum of its proper divisors (6191645).

257828323 is a wasteful number, since it uses less digits than its factorization.

257828323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753.

The product of its digits is 161280, while the sum is 40.

The square root of 257828323 is about 16057.0334433232. The cubic root of 257828323 is about 636.4684415589.

The spelling of 257828323 in words is "two hundred fifty-seven million, eight hundred twenty-eight thousand, three hundred twenty-three".