489594257 has 8 divisors (see below), whose sum is σ = 492600960. Its totient is φ = 486596880.

The previous prime is 489594239. The next prime is 489594317. The reversal of 489594257 is 752495984.

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 489594257 - 2¹⁰ = 489593233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489594199 and 489594208.

It is not an unprimeable number, because it can be changed into a prime (489594227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122582 + ... + 126512.

It is an arithmetic number, because the mean of its divisors is an integer number (61575120).

Almost surely, 2^489594257 is an apocalyptic number.

It is an amenable number.

489594257 is a deficient number, since it is larger than the sum of its proper divisors (3006703).

489594257 is a wasteful number, since it uses less digits than its factorization.

489594257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663.

The product of its digits is 3628800, while the sum is 53.

The square root of 489594257 is about 22126.7769229954. The cubic root of 489594257 is about 788.1558527953.

The spelling of 489594257 in words is "four hundred eighty-nine million, five hundred ninety-four thousand, two hundred fifty-seven".