987201 has 8 divisors (see below), whose sum is σ = 1462560. Its totient is φ = 658116.

The previous prime is 987199. The next prime is 987209. The reversal of 987201 is 102789.

It is not a de Polignac number, because 987201 - 2¹ = 987199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 36563 = 987201 / (9 + 8 + 7 + 2 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (987209) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18255 + ... + 18308.

It is an arithmetic number, because the mean of its divisors is an integer number (182820).

2⁹⁸⁷²⁰¹ is an apocalyptic number.

It is an amenable number.

987201 is a deficient number, since it is larger than the sum of its proper divisors (475359).

987201 is a wasteful number, since it uses less digits than its factorization.

987201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36572 (or 36566 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 987201 is about 993.5798911009. The cubic root of 987201 is about 99.5715334528.

987201 divided by its sum of digits (27) gives a palindrome (36563).

The spelling of 987201 in words is "nine hundred eighty-seven thousand, two hundred one".