487257 has 4 divisors (see below), whose sum is σ = 649680. Its totient is φ = 324836.

The previous prime is 487247. The next prime is 487261. The reversal of 487257 is 752784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 487257 - 2¹¹ = 485209 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 487257.

It is not an unprimeable number, because it can be changed into a prime (487247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81207 + ... + 81212.

It is an arithmetic number, because the mean of its divisors is an integer number (162420).

2⁴⁸⁷²⁵⁷ is an apocalyptic number.

It is an amenable number.

487257 is a deficient number, since it is larger than the sum of its proper divisors (162423).

487257 is a wasteful number, since it uses less digits than its factorization.

487257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162422.

The product of its digits is 15680, while the sum is 33.

The square root of 487257 is about 698.0379645836. The cubic root of 487257 is about 78.6899668444.

The spelling of 487257 in words is "four hundred eighty-seven thousand, two hundred fifty-seven".