287601 has 8 divisors (see below), whose sum is σ = 393984. Its totient is φ = 186480.

The previous prime is 287597. The next prime is 287611. The reversal of 287601 is 106782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 287601 - 2² = 287597 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287601.

It is not an unprimeable number, because it can be changed into a prime (287611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185 + ... + 1406.

It is an arithmetic number, because the mean of its divisors is an integer number (49248).

2²⁸⁷⁶⁰¹ is an apocalyptic number.

It is an amenable number.

287601 is a deficient number, since it is larger than the sum of its proper divisors (106383).

287601 is a wasteful number, since it uses less digits than its factorization.

287601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 287601 is about 536.2844394535. The cubic root of 287601 is about 66.0080339164.

It can be divided in two parts, 287 and 601, that added together give a palindrome (888).

The spelling of 287601 in words is "two hundred eighty-seven thousand, six hundred one".