286722 has 24 divisors (see below), whose sum is σ = 658476. Its totient is φ = 89856.

The previous prime is 286721. The next prime is 286733. The reversal of 286722 is 227682.

286722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 281961 + 4761 = 531^2 + 69^2 .

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 286722.

It is not an unprimeable number, because it can be changed into a prime (286721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163 + ... + 774.

2²⁸⁶⁷²² is an apocalyptic number.

286722 is an abundant number, since it is smaller than the sum of its proper divisors (371754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286722 is a wasteful number, since it uses less digits than its factorization.

286722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 959 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 286722 is about 535.4642845233. The cubic root of 286722 is about 65.9407181182.

The spelling of 286722 in words is "two hundred eighty-six thousand, seven hundred twenty-two".