287201 has 4 divisors (see below), whose sum is σ = 299712. Its totient is φ = 274692.

The previous prime is 287191. The next prime is 287219. The reversal of 287201 is 102782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 287201 - 2⁶ = 287137 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287201.

It is not an unprimeable number, because it can be changed into a prime (287251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6221 + ... + 6266.

It is an arithmetic number, because the mean of its divisors is an integer number (74928).

2²⁸⁷²⁰¹ is an apocalyptic number.

It is an amenable number.

287201 is a deficient number, since it is larger than the sum of its proper divisors (12511).

287201 is a wasteful number, since it uses less digits than its factorization.

287201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12510.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 287201 is about 535.9113732699. The cubic root of 287201 is about 65.9774180473.

Adding to 287201 its reverse (102782), we get a palindrome (389983).

The spelling of 287201 in words is "two hundred eighty-seven thousand, two hundred one".