285465 has 8 divisors (see below), whose sum is σ = 456768. Its totient is φ = 152240.

The previous prime is 285463. The next prime is 285469. The reversal of 285465 is 564582.

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

It is not a de Polignac number, because 285465 - 2¹ = 285463 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285465.

It is not an unprimeable number, because it can be changed into a prime (285463) 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, 9501 + ... + 9530.

It is an arithmetic number, because the mean of its divisors is an integer number (57096).

2²⁸⁵⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

285465 is a deficient number, since it is larger than the sum of its proper divisors (171303).

285465 is a wasteful number, since it uses less digits than its factorization.

285465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039.

The product of its digits is 9600, while the sum is 30.

The square root of 285465 is about 534.2892475055. The cubic root of 285465 is about 65.8442147621.

The spelling of 285465 in words is "two hundred eighty-five thousand, four hundred sixty-five".