285486609 has 8 divisors (see below), whose sum is σ = 400683040. Its totient is φ = 180307296.

The previous prime is 285486599. The next prime is 285486613. The reversal of 285486609 is 906684582.

It is a happy number.

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

It is not a de Polignac number, because 285486609 - 2⁵ = 285486577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285486629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504212 + ... + 2504325.

It is an arithmetic number, because the mean of its divisors is an integer number (50085380).

Almost surely, 2^285486609 is an apocalyptic number.

It is an amenable number.

285486609 is a deficient number, since it is larger than the sum of its proper divisors (115196431).

285486609 is a wasteful number, since it uses less digits than its factorization.

285486609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008559.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 285486609 is about 16896.3489843220. The cubic root of 285486609 is about 658.4587613531.

The spelling of 285486609 in words is "two hundred eighty-five million, four hundred eighty-six thousand, six hundred nine".