285536 has 12 divisors (see below), whose sum is σ = 562212. Its totient is φ = 142752.

The previous prime is 285533. The next prime is 285539. The reversal of 285536 is 635582.

It is an interprime number because it is at equal distance from previous prime (285533) and next prime (285539).

It is a junction number, because it is equal to n+sod(n) for n = 285499 and 285508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4430 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (46851).

2²⁸⁵⁵³⁶ is an apocalyptic number.

It is an amenable number.

285536 is a deficient number, since it is larger than the sum of its proper divisors (276676).

285536 is an equidigital number, since it uses as much as digits as its factorization.

285536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8933 (or 8925 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 285536 is about 534.3556867855. The cubic root of 285536 is about 65.8496731682.

The spelling of 285536 in words is "two hundred eighty-five thousand, five hundred thirty-six".