285252793 has 16 divisors (see below), whose sum is σ = 339526656. Its totient is φ = 234501120.

The previous prime is 285252791. The next prime is 285252811. The reversal of 285252793 is 397252582.

It is not a de Polignac number, because 285252793 - 2¹ = 285252791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285252791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18705 + ... + 30337.

It is an arithmetic number, because the mean of its divisors is an integer number (21220416).

Almost surely, 2^285252793 is an apocalyptic number.

It is an amenable number.

285252793 is a deficient number, since it is larger than the sum of its proper divisors (54273863).

285252793 is a wasteful number, since it uses less digits than its factorization.

285252793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11784.

The product of its digits is 302400, while the sum is 43.

The square root of 285252793 is about 16889.4284391154. The cubic root of 285252793 is about 658.2789511168.

The spelling of 285252793 in words is "two hundred eighty-five million, two hundred fifty-two thousand, seven hundred ninety-three".