286849 has 4 divisors (see below), whose sum is σ = 290560. Its totient is φ = 283140.

The previous prime is 286831. The next prime is 286859. The reversal of 286849 is 948682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 286849 - 2⁷ = 286721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737 + ... + 1894.

It is an arithmetic number, because the mean of its divisors is an integer number (72640).

2²⁸⁶⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

286849 is a deficient number, since it is larger than the sum of its proper divisors (3711).

286849 is an equidigital number, since it uses as much as digits as its factorization.

286849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710.

The product of its digits is 27648, while the sum is 37.

The square root of 286849 is about 535.5828600693. The cubic root of 286849 is about 65.9504525591.

The spelling of 286849 in words is "two hundred eighty-six thousand, eight hundred forty-nine".