287946 has 24 divisors (see below), whose sum is σ = 661284. Its totient is φ = 90240.

The previous prime is 287939. The next prime is 287977. The reversal of 287946 is 649782.

It can be written as a sum of positive squares in 2 ways, for example, as 275625 + 12321 = 525^2 + 111^2 .

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 287946.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287946.

It is an unprimeable number.

287946 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 11 ways as a sum of consecutive naturals, for example, 165 + ... + 776.

2²⁸⁷⁹⁴⁶ is an apocalyptic number.

287946 is an abundant number, since it is smaller than the sum of its proper divisors (373338).

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

287946 is a wasteful number, since it uses less digits than its factorization.

287946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 963 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 287946 is about 536.6060007119. The cubic root of 287946 is about 66.0344173108.

The spelling of 287946 in words is "two hundred eighty-seven thousand, nine hundred forty-six".