285233999 has 16 divisors (see below), whose sum is σ = 298669056. Its totient is φ = 272160000.

The previous prime is 285233983. The next prime is 285234031. The reversal of 285233999 is 999332582.

It is a cyclic number.

It is not a de Polignac number, because 285233999 - 2⁴ = 285233983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285233959) 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 15 ways as a sum of consecutive naturals, for example, 474299 + ... + 474899.

It is an arithmetic number, because the mean of its divisors is an integer number (18666816).

Almost surely, 2^285233999 is an apocalyptic number.

285233999 is a deficient number, since it is larger than the sum of its proper divisors (13435057).

285233999 is a wasteful number, since it uses less digits than its factorization.

285233999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its digits is 1049760, while the sum is 50.

The square root of 285233999 is about 16888.8720464097. The cubic root of 285233999 is about 658.2644938043.

The spelling of 285233999 in words is "two hundred eighty-five million, two hundred thirty-three thousand, nine hundred ninety-nine".