285345633 has 4 divisors (see below), whose sum is σ = 380460848. Its totient is φ = 190230420.

The previous prime is 285345623. The next prime is 285345647. The reversal of 285345633 is 336543582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 285345633 - 2⁹ = 285345121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 285345591 and 285345600.

It is not an unprimeable number, because it can be changed into a prime (285345623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47557603 + ... + 47557608.

It is an arithmetic number, because the mean of its divisors is an integer number (95115212).

Almost surely, 2^285345633 is an apocalyptic number.

It is an amenable number.

285345633 is a deficient number, since it is larger than the sum of its proper divisors (95115215).

285345633 is an equidigital number, since it uses as much as digits as its factorization.

285345633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95115214.

The product of its digits is 259200, while the sum is 39.

The square root of 285345633 is about 16892.1766803453. The cubic root of 285345633 is about 658.3503591103.

The spelling of 285345633 in words is "two hundred eighty-five million, three hundred forty-five thousand, six hundred thirty-three".