285433 has 2 divisors, whose sum is σ = 285434. Its totient is φ = 285432.

The previous prime is 285421. The next prime is 285451. The reversal of 285433 is 334582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153664 + 131769 = 392^2 + 363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285433 is a prime.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 285398 and 285407.

It is not a weakly prime, because it can be changed into another prime (285463) 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 as a sum of consecutive naturals, namely, 142716 + 142717.

It is an arithmetic number, because the mean of its divisors is an integer number (142717).

2²⁸⁵⁴³³ is an apocalyptic number.

It is an amenable number.

285433 is a deficient number, since it is larger than the sum of its proper divisors (1).

285433 is an equidigital number, since it uses as much as digits as its factorization.

285433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 285433 is about 534.2593003402. The cubic root of 285433 is about 65.8417543395.

The spelling of 285433 in words is "two hundred eighty-five thousand, four hundred thirty-three".