487745 has 4 divisors (see below), whose sum is σ = 585300. Its totient is φ = 390192.

The previous prime is 487741. The next prime is 487757. The reversal of 487745 is 547784.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146689 + 341056 = 383^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 487745 - 2² = 487741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48770 + ... + 48779.

It is an arithmetic number, because the mean of its divisors is an integer number (146325).

2⁴⁸⁷⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

487745 is a deficient number, since it is larger than the sum of its proper divisors (97555).

487745 is an equidigital number, since it uses as much as digits as its factorization.

487745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97554.

The product of its digits is 31360, while the sum is 35.

The square root of 487745 is about 698.3874282946. The cubic root of 487745 is about 78.7162280654.

The spelling of 487745 in words is "four hundred eighty-seven thousand, seven hundred forty-five".