285364863 has 28 divisors (see below), whose sum is σ = 488981968. Its totient is φ = 163062720.

The previous prime is 285364861. The next prime is 285364903. The reversal of 285364863 is 368463582.

It is a happy number.

285364863 is a `hidden beast` number, since 285 + 364 + 8 + 6 + 3 = 666.

It is not a de Polignac number, because 285364863 - 2¹ = 285364861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285364861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 22858 + ... + 33063.

Almost surely, 2^285364863 is an apocalyptic number.

285364863 is a deficient number, since it is larger than the sum of its proper divisors (203617105).

285364863 is an frugal number, since it uses more digits than its factorization.

285364863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55946 (or 55931 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 285364863 is about 16892.7458691593. The cubic root of 285364863 is about 658.3651479507.

The spelling of 285364863 in words is "two hundred eighty-five million, three hundred sixty-four thousand, eight hundred sixty-three".