286556 has 12 divisors (see below), whose sum is σ = 509040. Its totient is φ = 141120.

The previous prime is 286553. The next prime is 286589. The reversal of 286556 is 655682.

It is a happy number.

286556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×286556² = 164228682272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286553) 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 3 ways as a sum of consecutive naturals, for example, 221 + ... + 788.

It is an arithmetic number, because the mean of its divisors is an integer number (42420).

2²⁸⁶⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

286556 is a deficient number, since it is larger than the sum of its proper divisors (222484).

286556 is a wasteful number, since it uses less digits than its factorization.

286556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1082 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 286556 is about 535.3092564117. The cubic root of 286556 is about 65.9279900258.

The spelling of 286556 in words is "two hundred eighty-six thousand, five hundred fifty-six".