285916343 has 4 divisors (see below), whose sum is σ = 286084008. Its totient is φ = 285748680.

The previous prime is 285916321. The next prime is 285916373. The reversal of 285916343 is 343619582.

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 285916343 - 2¹⁰ = 285915319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 285916343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285916373) 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, 81248 + ... + 84693.

It is an arithmetic number, because the mean of its divisors is an integer number (71521002).

Almost surely, 2^285916343 is an apocalyptic number.

285916343 is a deficient number, since it is larger than the sum of its proper divisors (167665).

285916343 is a wasteful number, since it uses less digits than its factorization.

285916343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167664.

The product of its digits is 155520, while the sum is 41.

The square root of 285916343 is about 16909.0609733362. The cubic root of 285916343 is about 658.7889814628.

The spelling of 285916343 in words is "two hundred eighty-five million, nine hundred sixteen thousand, three hundred forty-three".