987585 has 8 divisors (see below), whose sum is σ = 1580160. Its totient is φ = 526704.

The previous prime is 987559. The next prime is 987587. The reversal of 987585 is 585789.

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

It is not a de Polignac number, because 987585 - 2⁷ = 987457 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987585.

It is not an unprimeable number, because it can be changed into a prime (987587) 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, 32905 + ... + 32934.

It is an arithmetic number, because the mean of its divisors is an integer number (197520).

2⁹⁸⁷⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

987585 is a deficient number, since it is larger than the sum of its proper divisors (592575).

987585 is a wasteful number, since it uses less digits than its factorization.

987585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65847.

The product of its digits is 100800, while the sum is 42.

The square root of 987585 is about 993.7731129388. The cubic root of 987585 is about 99.5844421757.

The spelling of 987585 in words is "nine hundred eighty-seven thousand, five hundred eighty-five".