285985935 has 12 divisors (see below), whose sum is σ = 495709032. Its totient is φ = 152525808.

The previous prime is 285985919. The next prime is 285985939. The reversal of 285985935 is 539589582.

It is not a de Polignac number, because 285985935 - 2⁴ = 285985919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285985939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3177577 + ... + 3177666.

It is an arithmetic number, because the mean of its divisors is an integer number (41309086).

Almost surely, 2^285985935 is an apocalyptic number.

285985935 is a deficient number, since it is larger than the sum of its proper divisors (209723097).

285985935 is a wasteful number, since it uses less digits than its factorization.

285985935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355254 (or 6355251 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 54.

The square root of 285985935 is about 16911.1186797326. The cubic root of 285985935 is about 658.8424268437.

The spelling of 285985935 in words is "two hundred eighty-five million, nine hundred eighty-five thousand, nine hundred thirty-five".