987180 has 24 divisors (see below), whose sum is σ = 2764272. Its totient is φ = 263232.

The previous prime is 987143. The next prime is 987191. The reversal of 987180 is 81789.

It is an unprimeable number.

987180 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, 8167 + ... + 8286.

It is an arithmetic number, because the mean of its divisors is an integer number (115178).

2⁹⁸⁷¹⁸⁰ is an apocalyptic number.

It is an amenable number.

987180 is an abundant number, since it is smaller than the sum of its proper divisors (1777092).

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

987180 is a wasteful number, since it uses less digits than its factorization.

987180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16465 (or 16463 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 987180 is about 993.5693231979. The cubic root of 987180 is about 99.5708274105.

The spelling of 987180 in words is "nine hundred eighty-seven thousand, one hundred eighty".