987800 has 48 divisors (see below), whose sum is σ = 2511000. Its totient is φ = 358400.

The previous prime is 987797. The next prime is 987803. The reversal of 987800 is 8789.

It is an interprime number because it is at equal distance from previous prime (987797) and next prime (987803).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1976 + ... + 2424.

2⁹⁸⁷⁸⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255500).

987800 is an abundant number, since it is smaller than the sum of its proper divisors (1523200).

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

987800 is a wasteful number, since it uses less digits than its factorization.

987800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 987800 is about 993.8812806367. The cubic root of 987800 is about 99.5916682546.

The spelling of 987800 in words is "nine hundred eighty-seven thousand, eight hundred".