285298943 has 2 divisors, whose sum is σ = 285298944. Its totient is φ = 285298942.

The previous prime is 285298939. The next prime is 285298961. The reversal of 285298943 is 349892582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285298943 - 2² = 285298939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285298891 and 285298900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285298043) 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 as a sum of consecutive naturals, namely, 142649471 + 142649472.

It is an arithmetic number, because the mean of its divisors is an integer number (142649472).

Almost surely, 2^285298943 is an apocalyptic number.

285298943 is a deficient number, since it is larger than the sum of its proper divisors (1).

285298943 is an equidigital number, since it uses as much as digits as its factorization.

285298943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 50.

The square root of 285298943 is about 16890.7946231076. The cubic root of 285298943 is about 658.3144493791.

The spelling of 285298943 in words is "two hundred eighty-five million, two hundred ninety-eight thousand, nine hundred forty-three".