286641 has 6 divisors (see below), whose sum is σ = 414050. Its totient is φ = 191088.

The previous prime is 286633. The next prime is 286651. The reversal of 286641 is 146682.

It can be written as a sum of positive squares in only one way, i.e., 245025 + 41616 = 495^2 + 204^2 .

It is not a de Polignac number, because 286641 - 2³ = 286633 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (286651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15916 + ... + 15933.

2²⁸⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

286641 is a deficient number, since it is larger than the sum of its proper divisors (127409).

286641 is a wasteful number, since it uses less digits than its factorization.

286641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31855 (or 31852 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 286641 is about 535.3886438840. The cubic root of 286641 is about 65.9345080364.

The spelling of 286641 in words is "two hundred eighty-six thousand, six hundred forty-one".