287630 has 24 divisors (see below), whose sum is σ = 603288. Its totient is φ = 98448.

The previous prime is 287629. The next prime is 287669. The reversal of 287630 is 36782.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 287630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197 + ... + 783.

It is an arithmetic number, because the mean of its divisors is an integer number (25137).

2²⁸⁷⁶³⁰ is an apocalyptic number.

287630 is an abundant number, since it is smaller than the sum of its proper divisors (315658).

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

287630 is a wasteful number, since it uses less digits than its factorization.

287630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 287630 is about 536.3114766626. The cubic root of 287630 is about 66.0102524630.

The spelling of 287630 in words is "two hundred eighty-seven thousand, six hundred thirty".