987400 has 24 divisors (see below), whose sum is σ = 2296170. Its totient is φ = 394880.

The previous prime is 987391. The next prime is 987433. The reversal of 987400 is 4789.

It can be written as a sum of positive squares in 3 ways, for example, as 702244 + 285156 = 838^2 + 534^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2269 + ... + 2668.

2⁹⁸⁷⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

987400 is an abundant number, since it is smaller than the sum of its proper divisors (1308770).

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

987400 is a wasteful number, since it uses less digits than its factorization.

987400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953 (or 4944 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 987400 is about 993.6800289832. The cubic root of 987400 is about 99.5782235473.

The spelling of 987400 in words is "nine hundred eighty-seven thousand, four hundred".