287696 has 10 divisors (see below), whose sum is σ = 557442. Its totient is φ = 143840.

The previous prime is 287689. The next prime is 287701. The reversal of 287696 is 696782.

It can be written as a sum of positive squares in only one way, i.e., 287296 + 400 = 536^2 + 20^2 .

It is a d-powerful number, because it can be written as 2⁷ + 8³ + 6³ + 7³ + 9⁴ + 6⁷ .

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 287696.

It is an unprimeable number.

287696 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 as a sum of consecutive naturals, namely, 8975 + ... + 9006.

2²⁸⁷⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

287696 is a deficient number, since it is larger than the sum of its proper divisors (269746).

287696 is a wasteful number, since it uses less digits than its factorization.

287696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17989 (or 17983 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 287696 is about 536.3730045407. The cubic root of 287696 is about 66.0153010132.

The spelling of 287696 in words is "two hundred eighty-seven thousand, six hundred ninety-six".