287441 has 8 divisors (see below), whose sum is σ = 358464. Its totient is φ = 223920.

The previous prime is 287437. The next prime is 287449. The reversal of 287441 is 144782.

287441 = T₄₅ + T₄₆ + ... + T₁₂₁.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 287441 - 2² = 287437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287441.

It is not an unprimeable number, because it can be changed into a prime (287449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (44808).

2²⁸⁷⁴⁴¹ is an apocalyptic number.

It is an amenable number.

287441 is a deficient number, since it is larger than the sum of its proper divisors (71023).

287441 is a wasteful number, since it uses less digits than its factorization.

287441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751.

The product of its digits is 1792, while the sum is 26.

The square root of 287441 is about 536.1352441316. The cubic root of 287441 is about 65.9957909774.

The spelling of 287441 in words is "two hundred eighty-seven thousand, four hundred forty-one".