487657 has 2 divisors, whose sum is σ = 487658. Its totient is φ = 487656.

The previous prime is 487651. The next prime is 487681. The reversal of 487657 is 756784.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290521 + 197136 = 539^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 487657 - 2³ = 487649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (487651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243828 + 243829.

It is an arithmetic number, because the mean of its divisors is an integer number (243829).

2⁴⁸⁷⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

487657 is a deficient number, since it is larger than the sum of its proper divisors (1).

487657 is an equidigital number, since it uses as much as digits as its factorization.

487657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 37.

The square root of 487657 is about 698.3244231731. The cubic root of 487657 is about 78.7114937304.

The spelling of 487657 in words is "four hundred eighty-seven thousand, six hundred fifty-seven".