487709 has 2 divisors, whose sum is σ = 487710. Its totient is φ = 487708.

The previous prime is 487703. The next prime is 487717. The reversal of 487709 is 907784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448900 + 38809 = 670^2 + 197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487703) 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, 243854 + 243855.

It is an arithmetic number, because the mean of its divisors is an integer number (243855).

2⁴⁸⁷⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

487709 is a deficient number, since it is larger than the sum of its proper divisors (1).

487709 is an equidigital number, since it uses as much as digits as its factorization.

487709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 487709 is about 698.3616541592. The cubic root of 487709 is about 78.7142913608.

The spelling of 487709 in words is "four hundred eighty-seven thousand, seven hundred nine".