487491 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 317352.

The previous prime is 487489. The next prime is 487507. The reversal of 487491 is 194784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487491 - 2¹ = 487489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487471) 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, 1761 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁴⁸⁷⁴⁹¹ is an apocalyptic number.

487491 is a deficient number, since it is larger than the sum of its proper divisors (177789).

487491 is a wasteful number, since it uses less digits than its factorization.

487491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825.

The product of its digits is 8064, while the sum is 33.

The square root of 487491 is about 698.2055571248. The cubic root of 487491 is about 78.7025615022.

The spelling of 487491 in words is "four hundred eighty-seven thousand, four hundred ninety-one".