987528 has 32 divisors (see below), whose sum is σ = 2577600. Its totient is φ = 314688.

The previous prime is 987523. The next prime is 987533. The reversal of 987528 is 825789.

It is an interprime number because it is at equal distance from previous prime (987523) and next prime (987533).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987528.

It is not an unprimeable number, because it can be changed into a prime (987523) by changing a digit.

987528 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (80550).

2⁹⁸⁷⁵²⁸ is an apocalyptic number.

It is an amenable number.

987528 is an abundant number, since it is smaller than the sum of its proper divisors (1590072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987528 is a wasteful number, since it uses less digits than its factorization.

987528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1817 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 987528 is about 993.7444339467. The cubic root of 987528 is about 99.5825262486.

It can be divided in two parts, 98 and 7528, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 987528 in words is "nine hundred eighty-seven thousand, five hundred twenty-eight".