285285883 has 4 divisors (see below), whose sum is σ = 285389280. Its totient is φ = 285182488.

The previous prime is 285285877. The next prime is 285285943. The reversal of 285285883 is 388582582.

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

It is a cyclic number.

It is not a de Polignac number, because 285285883 - 2²⁵ = 251731451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285285853) 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, 47443 + ... + 53116.

It is an arithmetic number, because the mean of its divisors is an integer number (71347320).

Almost surely, 2^285285883 is an apocalyptic number.

285285883 is a deficient number, since it is larger than the sum of its proper divisors (103397).

285285883 is a wasteful number, since it uses less digits than its factorization.

285285883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103396.

The product of its digits is 1228800, while the sum is 49.

The square root of 285285883 is about 16890.4080175702. The cubic root of 285285883 is about 658.3044041054.

The spelling of 285285883 in words is "two hundred eighty-five million, two hundred eighty-five thousand, eight hundred eighty-three".