987530 has 32 divisors (see below), whose sum is σ = 1945296. Its totient is φ = 359424.

The previous prime is 987523. The next prime is 987533. The reversal of 987530 is 35789.

It can be written as a sum of positive squares in 8 ways, for example, as 683929 + 303601 = 827^2 + 551^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (987533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6212 + ... + 6368.

2⁹⁸⁷⁵³⁰ is an apocalyptic number.

987530 is a deficient number, since it is larger than the sum of its proper divisors (957766).

987530 is a wasteful number, since it uses less digits than its factorization.

987530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 987530 is about 993.7454402411. The cubic root of 987530 is about 99.5825934754.

The spelling of 987530 in words is "nine hundred eighty-seven thousand, five hundred thirty".