287275 has 6 divisors (see below), whose sum is σ = 356252. Its totient is φ = 229800.

The previous prime is 287269. The next prime is 287279. The reversal of 287275 is 572782.

It is not a de Polignac number, because 287275 - 2⁹ = 286763 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 8⁴ + 2¹⁸ + 7 + 7⁵ + 5³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5721 + ... + 5770.

287275 is a Friedman number, since it can be written as 758^2/2-7, using all its digits and the basic arithmetic operations.

2²⁸⁷²⁷⁵ is an apocalyptic number.

287275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

287275 is a deficient number, since it is larger than the sum of its proper divisors (68977).

287275 is a wasteful number, since it uses less digits than its factorization.

287275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11501 (or 11496 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 287275 is about 535.9804100898. The cubic root of 287275 is about 65.9830841252.

The spelling of 287275 in words is "two hundred eighty-seven thousand, two hundred seventy-five".