80285 has 4 divisors (see below), whose sum is σ = 96348. Its totient is φ = 64224.

The previous prime is 80279. The next prime is 80287. The reversal of 80285 is 58208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32761 + 47524 = 181^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 80285 - 2⁶ = 80221 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 80285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80287) 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, 8024 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (24087).

2⁸⁰²⁸⁵ is an apocalyptic number.

It is an amenable number.

80285 is a deficient number, since it is larger than the sum of its proper divisors (16063).

80285 is a wasteful number, since it uses less digits than its factorization.

80285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16062.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 80285 is about 283.3460781447. The cubic root of 80285 is about 43.1398009827.

Adding to 80285 its sum of digits (23), we get a palindrome (80308).

The spelling of 80285 in words is "eighty thousand, two hundred eighty-five".