285473285 has 8 divisors (see below), whose sum is σ = 346417560. Its totient is φ = 225812224.

The previous prime is 285473269. The next prime is 285473323. The reversal of 285473285 is 582374582.

It can be written as a sum of positive squares in 4 ways, for example, as 66049 + 285407236 = 257^2 + 16894^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285473285 - 2⁴ = 285473269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320312 + ... + 321201.

It is an arithmetic number, because the mean of its divisors is an integer number (43302195).

Almost surely, 2^285473285 is an apocalyptic number.

It is an amenable number.

285473285 is a deficient number, since it is larger than the sum of its proper divisors (60944275).

285473285 is an equidigital number, since it uses as much as digits as its factorization.

285473285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641607.

The product of its digits is 537600, while the sum is 44.

The square root of 285473285 is about 16895.9546933578. The cubic root of 285473285 is about 658.4485175089.

The spelling of 285473285 in words is "two hundred eighty-five million, four hundred seventy-three thousand, two hundred eighty-five".