987538 has 8 divisors (see below), whose sum is σ = 1515888. Its totient is φ = 482244.

The previous prime is 987533. The next prime is 987541. The reversal of 987538 is 835789.

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

It is a self number, because there is not a number n which added to its sum of digits gives 987538.

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 3 ways as a sum of consecutive naturals, for example, 5656 + ... + 5827.

It is an arithmetic number, because the mean of its divisors is an integer number (189486).

2⁹⁸⁷⁵³⁸ is an apocalyptic number.

987538 is a deficient number, since it is larger than the sum of its proper divisors (528350).

987538 is a wasteful number, since it uses less digits than its factorization.

987538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11528.

The product of its digits is 60480, while the sum is 40.

The square root of 987538 is about 993.7494654087. The cubic root of 987538 is about 99.5828623815.

The spelling of 987538 in words is "nine hundred eighty-seven thousand, five hundred thirty-eight".