285448433 has 2 divisors, whose sum is σ = 285448434. Its totient is φ = 285448432.

The previous prime is 285448417. The next prime is 285448441. The reversal of 285448433 is 334844582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276490384 + 8958049 = 16628^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 285448433 - 2⁴ = 285448417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (285448133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142724216 + 142724217.

It is an arithmetic number, because the mean of its divisors is an integer number (142724217).

Almost surely, 2^285448433 is an apocalyptic number.

It is an amenable number.

285448433 is a deficient number, since it is larger than the sum of its proper divisors (1).

285448433 is an equidigital number, since it uses as much as digits as its factorization.

285448433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 41.

The square root of 285448433 is about 16895.2192350381. The cubic root of 285448433 is about 658.4294097812.

The spelling of 285448433 in words is "two hundred eighty-five million, four hundred forty-eight thousand, four hundred thirty-three".