286949 has 4 divisors (see below), whose sum is σ = 309036. Its totient is φ = 264864.

The previous prime is 286927. The next prime is 286973. The reversal of 286949 is 949682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 112225 = 418^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 286949 - 2¹⁶ = 221413 is a prime.

It is a Curzon number.

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 286949.

It is not an unprimeable number, because it can be changed into a prime (286999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11024 + ... + 11049.

It is an arithmetic number, because the mean of its divisors is an integer number (77259).

2²⁸⁶⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

286949 is a deficient number, since it is larger than the sum of its proper divisors (22087).

286949 is a wasteful number, since it uses less digits than its factorization.

286949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22086.

The product of its digits is 31104, while the sum is 38.

The square root of 286949 is about 535.6762081706. The cubic root of 286949 is about 65.9581154514.

The spelling of 286949 in words is "two hundred eighty-six thousand, nine hundred forty-nine".