287796 has 24 divisors (see below), whose sum is σ = 695520. Its totient is φ = 92512.

The previous prime is 287789. The next prime is 287801. The reversal of 287796 is 697782.

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 287796.

It is an unprimeable number.

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, 66 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (28980).

2²⁸⁷⁷⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347760).

287796 is an abundant number, since it is smaller than the sum of its proper divisors (407724).

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

287796 is a wasteful number, since it uses less digits than its factorization.

287796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 861 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 287796 is about 536.4662151525. The cubic root of 287796 is about 66.0229488607.

The spelling of 287796 in words is "two hundred eighty-seven thousand, seven hundred ninety-six".